Display apparatus

ABSTRACT

A display apparatus may include a rear cover at a rear surface of a display module and a vibration generating module at a rear region of the rear cover. The vibration generating module may be configured to output sound in a forward direction and a lateral direction of the display module.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of and priority to the Korean PatentApplication No. 10-2019-0132514 filed on Oct. 23, 2019, the entirety ofwhich is hereby incorporated by reference as if fully set forth herein.

BACKGROUND Technical Field

The present disclosure relates to a display apparatus, and moreparticularly, to a display apparatus including a display panel foroutputting sound.

Discussion of the Related Art

Generally, display apparatuses are equipped in home appliances orelectronic devices, such as televisions (TVs), monitors, notebookcomputers, smartphones, tablet computers, electronic organizers,electronic pads, wearable devices, watch phones, portable informationdevices, navigation devices, and automotive control display apparatuses,and are used as a screen for displaying an image.

Display apparatuses may include a display panel for displaying an imageand a sound device for outputting a sound associated with the image.

However, in display apparatuses, because a sound output from a sounddevice may travel to a rearward or a downward direction of the displayapparatus, sound quality may be degraded due to interference betweensounds reflected from a wall and the ground. For this reason, it may bedifficult to transfer an accurate sound, and an immersion experience ofa viewer is reduced.

SUMMARY

Accordingly, embodiments of the present disclosure are directed to adisplay apparatus that substantially obviates one or more problems dueto limitations and disadvantages of the related art.

The inventors have recognized problems of the display apparatuses asabove-mentioned and have performed various experiments so that, when auser in front of a display panel is watching an image, a travelingdirection of sound is toward a front surface of the display panel. Thus,sound quality may be enhanced. Thus, through the various experiments,the inventors have invented a display apparatus having a new structurethat may generate sound traveling to a forward region in front of thedisplay panel, thereby enhancing sound quality.

An aspect of the present disclosure is to provide a display apparatusfor providing improved sound quality and increasing an immersionexperience of a viewer.

Another aspect of the present disclosure is to provide a displayapparatus which generates sound for traveling to a forward region infront of a display module.

Another aspect of the present disclosure is to providing a displayapparatus which generates sound for traveling to a forward region infront and a lateral region in side of a display module.

Additional features and aspects will be set forth in the descriptionthat follows, and in part will be apparent from the description, or maybe learned by practice of the inventive concepts provided herein. Otherfeatures and aspects of the inventive concepts may be realized andattained by the structure particularly pointed out in the writtendescription, or derivable therefrom, and claims hereof as well as theappended drawings.

To achieve these and other inventive concepts, as embodied and broadlydescribed herein, a display apparatus comprises a display moduleincluding a display panel and configured to display an image, a rearcover at a rear surface of the display module, and a vibrationgenerating module at a rear region of the rear cover, wherein thevibration generating module is configured to output sound in a forwarddirection and a lateral direction with respect to the display module.

In another aspect, a display apparatus comprises a display moduleincluding a display panel and configured to display an image, a rearcover at a rear surface of the display module, and a vibrationgenerating module at a rear region of the rear cover and configured tooutput a sound to the display module, wherein the rear cover and thevibration generating module are disposed in non-parallel.

According to an embodiment of the present disclosure, a displayapparatus for outputting sound to a forward region in front and alateral region in side of a display module may be provided.

It is to be understood that both the foregoing general description andthe following detailed description of the present disclosure areexemplary and explanatory and are intended to provide furtherexplanation of the disclosure as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the disclosure and are incorporated in and constitute apart of this application, illustrate embodiments of the disclosure andtogether with the description serve to explain principles of thedisclosure.

FIG. 1 illustrates a display apparatus according to an embodiment of thepresent disclosure.

FIG. 2 illustrates a rear surface of a display apparatus according to anembodiment of the present disclosure.

FIG. 3 is an exploded view of a display apparatus according to anembodiment of the present disclosure.

FIG. 4 illustrates a sound generating device according to an embodimentof the present disclosure.

FIG. 5 is a view from above of a display apparatus according to anembodiment of the present disclosure.

FIG. 6 is a cross-sectional view taken along line I-I′ illustrated inFIG. 3.

FIG. 7 is an exploded view of a display apparatus according to anotherembodiment of the present disclosure.

FIG. 8 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 9 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 10 illustrates a rear surface of a display apparatus according toanother embodiment of the present disclosure.

FIG. 11 is a view from above of a display apparatus according to anotherembodiment of the present disclosure.

FIG. 12 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 13 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 14 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 15 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 16 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 17 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 18 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 19 illustrates a display apparatus according to another embodimentof the present disclosure.

FIG. 20 is a cross-sectional view taken along line II-IP illustrated inFIG. 19.

FIG. 21 is a graph showing a sound output characteristic of a displayapparatus according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Reference will now be made in detail to the exemplary embodiments of thepresent disclosure, examples of which may be illustrated in theaccompanying drawings.

Advantages and features of the present disclosure, and implementationmethods thereof will be clarified through following embodimentsdescribed with reference to the accompanying drawings. The presentdisclosure may, however, be embodied in different forms and should notbe construed as limited to the embodiments set forth herein. Rather,these embodiments are provided so that this disclosure will be thoroughand complete, and will fully convey the scope of the present disclosureto those skilled in the art. Furthermore, the present disclosure is onlydefined by scopes of claims.

Throughout the drawings and the detailed description, unless otherwisedescribed, the same drawing reference numerals should be understood torefer to the same elements, features, and structures. The relative sizeand depiction of these elements may be exaggerated for clarity,illustration, and convenience. The progression of processing stepsand/or operations described is an example; however, the sequence ofsteps and/or operations is not limited to that set forth herein and maybe changed as is known in the art, with the exception of steps and/oroperations necessarily occurring in a particular order. Like referencenumerals designate like elements throughout. Names of the respectiveelements used in the following explanations are selected only forconvenience of writing the specification and may be thus different fromthose used in actual products.

A shape, a size, a ratio, an angle, and a number disclosed in thedrawings for describing embodiments of the present disclosure are merelyan example, and thus, the present disclosure is not limited to theillustrated details. Like reference numerals refer to like elementsthroughout. In the following description, when the detailed descriptionof the relevant known technology is determined to unnecessarily obscurethe important point of the present disclosure, the detailed descriptionwill be omitted.

In a case where “comprise,” “have,” and “include” described in thepresent specification are used, another part may be added unless “only”is used. The terms of a singular form may include plural forms unlessreferred to the contrary.

In construing an element, the element is construed as including an erroror tolerance range although there is no explicit description of such anerror or tolerance range.

In describing a position relationship, for example, when a positionrelation between two parts is described as, “on,” “over,” “under,” and“next,” one or more other parts may be disposed between the two partsunless a more limiting term, such as “just” or “direct(ly)” is used.

In describing a time relationship, for example, when the temporal orderis described as, for example, “after,” “subsequent,” “next,” and“before,” a case which is not continuous may be included unless a morelimiting term, such as “just,” “immediate(ly),” or “direct(ly)” is used.

It will be understood that, although the terms “first,” “second,” etc.may be used herein to describe various elements, these elements shouldnot be limited by these terms. These terms are only used to distinguishone element from another. For example, a first element could be termed asecond element, and, similarly, a second element could be termed a firstelement, without departing from the scope of the present disclosure.

In describing elements of the present disclosure, the terms “first,”“second,” “A,” “B,” “(a),” “(b),” etc. may be used. These terms areintended to identify the corresponding elements from the other elements,and basis, order, or number of the corresponding elements should notlimited by these terms. The expression that an element is “connected,”“coupled,” or “adhered” to another element or layer the element or layercan not only be directly connected or adhered to another element orlayer, but also be indirectly connected or adhered to another element orlayer with one or more intervening elements or layers “disposed” betweenthe elements or layers, unless otherwise specified.

The term “at least one” should be understood as including any and allcombinations of one or more of the associated listed items. For example,the meaning of “at least one of a first item, a second item, and a thirditem” denotes the combination of all items proposed from two or more ofthe first item, the second item, and the third item as well as the firstitem, the second item, or the third item.

In the description of embodiments, when a structure is described asbeing positioned “on or above” or “under or below” another structure,this description should be construed as including a case in which thestructures contact each other as well as a case in which a thirdstructure is disposed therebetween. The size and thickness of eachelement shown in the drawings are given merely for the convenience ofdescription, and embodiments of the present disclosure are not limitedthereto, unless otherwise specified.

Features of various embodiments of the present disclosure may bepartially or overall coupled to or combined with each other, and may bevariously inter-operated with each other and driven technically as thoseskilled in the art can sufficiently understand. The embodiments of thepresent disclosure may be carried out independently from each other, ormay be carried out together in co-dependent relationship.

Hereinafter, embodiments of a display apparatus according to the presentdisclosure will be described in detail with reference to theaccompanying drawings. In adding reference numerals to elements of eachof the drawings, although the same elements are illustrated in otherdrawings, like reference numerals may refer to like elements. In thefollowing description, when the detailed description of the relevantknown function or configuration is determined to unnecessarily obscurethe important point of the present disclosure, the detailed descriptionwill be omitted. Also, for convenience of description, a scale of eachof elements illustrated in the accompanying drawings differs from a realscale, and thus, is not limited to a scale illustrated in the drawings.

A display apparatus according to an embodiment of the present disclosuremay include a vibration generating module. When the display apparatus isconfigured with a sound generating device which is the vibrationgenerating module, there is a problem where it is difficult to secure asound of a high-pitched sound band, due to complicated structures of thedisplay apparatus. In order to solve the problem, the display apparatusaccording to an embodiment of the present disclosure may further includea piezoelectric vibration device including a piezoelectric material or apiezoelectric device having a piezoelectric effect (or an inversepiezoelectric characteristic) where an output of the high-pitched soundband is strong. When the piezoelectric vibration device is provided, thecost of the display apparatus increases, and a separate element forimplementing a sound signal in the piezoelectric vibration device isneeded, causing an increase in cost. Therefore, the inventors haveperformed various experiments for realizing a sound of the high-pitchedsound band without the piezoelectric vibration device. Through thevarious experiments, the inventors have invented a display apparatushaving a new structure. This will be described below.

FIG. 1 illustrates a display apparatus according to an embodiment of thepresent disclosure.

With reference to FIG. 1, the display apparatus according to anembodiment of the present disclosure may output sound S1 based on avibration of a display module 100 configured to display an image. Forexample, in the display apparatus, the display module 100 may vibrate bya vibration generating device (or a sound generating device) to generatethe sound S1. The sound S1 generated based on the vibration of thedisplay module 100 may be directly output to a screen forward region FD(or forward direction) in front of the display apparatus. Therefore, byusing the display module 100 as a vibration plate for generating asound, the display apparatus according to an embodiment of the presentdisclosure may output the sound S1 to the screen forward region FD infront of the display apparatus, thereby enabling the transfer of anaccurate sound, improving sound quality, and increasing an immersionexperience of a viewer.

FIG. 2 illustrates a rear surface of a display apparatus according to anembodiment of the present disclosure. FIG. 3 is an exploded view of adisplay apparatus according to an embodiment of the present disclosure.FIG. 4 illustrates a sound generating device according to an embodimentof the present disclosure. FIG. 5 is a view from above of a displayapparatus according to an embodiment of the present disclosure. FIG. 6is a cross-sectional view taken along line I-I′ illustrated in FIG. 3.

With reference to FIGS. 2 to 6, the display apparatus according to anembodiment of the present disclosure may include a display module 100, asupporting part 200, a rear cover 300, and a vibration generating module400.

The display module 100 may be a liquid crystal display module, butembodiments of the present disclosure are not limited thereto. Forexample, the display module 100 may be a display module such as a lightemitting display module, an electrophoretic display module, a microlight emitting diode display module, an electrowetting display module,or a quantum dot light emitting display module.

The rear cover 300 may be configured to support the supporting part (orpanel guide or panel guide part) 200, and may cover a rear surface ofthe display module 100. Also, the rear cover 300 may be configured tosupport the vibration generating module 400. The rear cover 300 may alsoact as a vibration plate, and thus, may include a metal material or ametal alloy material. For example, the rear cover 300 may include amaterial among a Fe material, an Al material, a Mg alloy material, aMg—Li alloy material, and an Al alloy material, but embodiments of thepresent disclosure are not limited thereto. When a rear cover 300includes a material including nonferrous metal, a sound of a low-pitchedsound band of a vibration generating module 400 may be more enhanced.For example, when the rear cover 300 includes ferrous metal, loss of avibration may occur due to a magnetic field of the vibration generatingmodule 400, and thus, a sound characteristic of the vibration generatingmodule 400 may be reduced. For example, the low-pitched sound band maybe 200 Hz or less, but embodiments of the present disclosure are notlimited thereto.

The rear cover 300 according to an embodiment of the present disclosuremay further include a rear portion 310 which is configured to supportthe rear surface of the display module 100, and a side portion 330 whichis connected to a periphery region EA of the rear portion 310 to supportthe supporting part 200.

The rear portion 310 may cover the rear surface of the display module100 and may support the display module 100. The rear portion 310 mayhave a plate structure, support the backlight 130 of the display module100, and support the vibration generating module 400. For example, therear portion 310 may directly contact a rear surface of the reflectivesheet 133 and may transfer a sound vibration, generated based on avibration of the vibration generating module 400, to the reflectivesheet 133 of the backlight 130.

The rear portion 310 may include a middle region MA corresponding to (oroverlapping) a middle portion of the display module 100 and a peripheryregion EA corresponding to (or overlapping) the periphery region of thedisplay module 100.

The side portion 330 may be bent from a periphery of the rear portion310 and may be configured to support the supporting part 200. The sideportion 330 may provide a backlight accommodating space on the rearportion 310 and may surround side surfaces of the backlight 130accommodated into (or supported by) the backlight accommodating space.The side portion 330 may transfer a sound vibration, generated in therear portion 310 by the vibration generating module 400, to thesupporting part 200.

The rear cover 300 according to an embodiment of the present disclosuremay further include a reinforcement portion 350. The reinforcementportion 350 may reinforce a stiffness of the rear cover 300 and thus maybe referred to as a stiffness reinforcement portion, but embodiments ofthe present disclosure are not limited thereto.

The reinforcement portion 350 may be disposed in a region (or aconnection region) where the rear portion 310 intersects the sideportion 330. For example, the reinforcement portion 350 may be providedalong the periphery region EA of the rear portion 310. For example, thereinforcement portion 350 may protrude toward a rear direction to havean inclined surface inclined from an end portion of the rear portion310. When the rear cover 300 includes the reinforcement portion 350, theside portion 330 may be connected to the end portion of thereinforcement portion 350.

The display apparatus according to an embodiment of the presentdisclosure may further include a system rear cover 600 on a rear surfaceof the rear cover 300.

The system rear cover 600 may accommodate the display module 100 inwhich the vibration generating module 400 is disposed, and may surroundthe side surfaces of the display module 100. For example, the systemrear cover 600 may be referred to as a set cover, a rear set cover, anoutermost set cover, a product cover, or an outermost product cover, butembodiments of the present disclosure are not limited thereto.

A rear surface (or a backside surface) of a display module 100 mayinclude a middle region MA and a periphery region EA. For example, therear surface (or the backside surface) of the display module 100 may bedivided into the middle region MA and the periphery region EA. Thevibration generating module 400 may be disposed in the periphery regionEA of the display module 100.

The vibration generating module 400 may include a first sound generatingdevice 410 and a second sound generating device 430. The first soundgenerating device 410 and the second sound generating device 430according to an embodiment of the present disclosure may be disposed inthe periphery region EA of the rear cover 300. For example, the firstsound generating device 410 and the second sound generating device 430may be disposed along the periphery region EA of the rear cover 300. Forexample, positions of the first and second sound generating devices 410and 430 may be disposed to be symmetrical or asymmetrical with a centerof the display module 100 with respect to a first direction X (or awidthwise direction) of the display module 100.

The display panel 110 according to an embodiment of the presentdisclosure may include a first substrate 111, a second substrate 113, asecond polarization member 115, and a first polarization member 117.

The first substrate 111 may be an upper substrate or a thin filmtransistor (TFT) array substrate and may include a pixel array (ordisplay portion or display region) including a plurality of pixelsrespectively in a plurality of pixel areas by intersections of aplurality of gate lines and/or a plurality of data lines. Each of theplurality of pixels may include a TFT connected to a gate line and/or adata line, a pixel electrode connected to the TFT, and a commonelectrode which is provided adjacent to the pixel electrode and issupplied with a common voltage.

The first substrate 111 may further include a pad part in a firstperiphery (or a first non-display portion) thereof and a gate drivingcircuit in a second periphery (or a second non-display portion) thereof.

The pad part may provide the pixel array and/or the gate driving circuitwith a signal supplied from the outside. For example, the pad part mayinclude a plurality of data pads connected to the plurality of datalines through a plurality of data link lines and a plurality of gateinput pads connected to the gate driving circuit via a gate controlsignal line. A first periphery of the first substrate 111 including thepad part may protrude from a corresponding side surface of the firstperiphery of the second substrate 113, and the pad part may be exposedin a rearward direction toward the rear cover 300. For example, thefirst substrate 111 may have a size which is greater than that of thesecond substrate 113, but embodiments of the present disclosure are notlimited thereto.

The gate driving circuit according to an embodiment of the presentdisclosure may be embedded (or integrated) into the second periphery ofthe first substrate 111 so as to be connected to the plurality of gatelines. For example, the gate driving circuit may be a shift registerincluding a transistor which is formed through the same process as aprocess of forming a TFT in each of the pixel areas. As another example,the gate driving circuit may be configured in the form of an integratedcircuit without being embedded into the first substrate 111 and may beincluded in the panel driving circuit.

The second substrate 113 may be a lower substrate or a color filterarray substrate and may include a pixel pattern which includes anopening area overlapping each of the pixel areas on the first substrate111 and a color filter layer in the opening area. The second substrate113 according to an embodiment of the present disclosure may have a sizewhich is less than that of the first substrate 111, but embodiments ofthe present disclosure are not limited thereto. For example, the secondsubstrate 113 may overlap a portion other than the first periphery ofthe first substrate 111. The second substrate 113 may be attached to theportion other than the first periphery of the first substrate 111 with aliquid crystal layer therebetween using a sealant.

The liquid crystal layer may be between the first substrate 111 and thesecond substrate 113 and may include a liquid crystal including liquidcrystal molecules having an alignment direction which is changed basedon an electric field generated from the common voltage and a datavoltage applied to the pixel electrode in each of the plurality ofpixels.

The second polarization member 115 may be on a lower surface of thesecond substrate 113 and may polarize light which is irradiated from thebacklight 130 and travels to the liquid crystal layer.

The first polarization member 117 may be on an upper surface of thefirst substrate 111 and may polarize light which passes through thefirst substrate 111 and is output to the outside.

The display panel 110 according to an embodiment of the presentdisclosure may drive the liquid crystal layer according to the electricfield generated from the common voltage and the data voltage applied tothe pixel electrode in each of the plurality of pixels, therebydisplaying an image by using light passing through the liquid crystallayer.

Because the first substrate 111 which is the TFT array substrateconfigures an image display surface, a whole front surface of thedisplay panel 110 according to an embodiment may be externally exposedwithout being covered by a separate mechanism.

According to another embodiment of the present disclosure, in thedisplay panel 110, the first substrate 111 may be the color filter arraysubstrate, and the second substrate 113 may be the TFT array substrate.For example, the display panel 110 according to another embodiment ofthe present disclosure may have a type where an upper portion and alower portion of the display panel 110 according to an embodiment of thepresent disclosure are reversed therebetween. For example, a pad part ofthe display panel 110 according to another embodiment of the presentdisclosure may be covered by a separate mechanism or structure.

The display module 100 according to an embodiment of the presentdisclosure may further include a buffer member 150. The buffer member150 may surround side surfaces of the display panel 110. The buffermember 150 may cover each side surface and each corner of the displaypanel 110. The buffer member 150 may protect the side surfaces of thedisplay panel 110 from an external impact, or may prevent light frombeing leaked through the side surfaces of the display panel 110. Thebuffer member 150 may include a silicon-based sealant or ultraviolet(UV)-curable sealant (or resin), but considering a process tact time,the buffer member 150 may include the UV-curable sealant. Also, thebuffer member 150 may have color (for example, blue, red, bluish green,or black), but embodiments of the present disclosure are not limitedthereto. For example, the buffer member 150 may include a colored resinor a light blocking resin for preventing leakage of light through a sidesurface.

A portion of an upper surface of the buffer member 150 according to anembodiment of present disclosure may be covered by the firstpolarization member 117. For example, the first polarization member 117may include an extension portion which extends long from a side surfacecorresponding to an outer surface of the first substrate 111 to cover aportion of a front surface of the buffer member 150 and is attached on aportion of the front surface of the buffer member 150. A bonding orattaching surface (or a boundary portion between the buffer member 150and the first substrate 111) between the buffer member 150 and the firstsubstrate 111 may be concealed by the extension portion of the firstpolarization member 117 and may not be exposed at a forward region, atwhich a viewer is located, in front of the display apparatus. In a casewhere the buffer member 150 is not provided, the front surface of thedisplay panel 110 may be exposed at the forward region FD in front ofthe display apparatus without being by a separate mechanism, and leakageof light through the side surfaces of the display panel 110 may occur.Accordingly, to remove or minimize a bezel width of the displayapparatus, in the display apparatus having a structure where the wholefront surface of the display panel 110 is exposed at the forward regionFD, the buffer member 150 may be provided for preventing light frombeing leaked through the side surface of the display panel 110 andprotecting the side surface of the display panel 110. But embodiments ofthe present disclosure are not limited thereto, and the buffer member150 may be omitted.

The backlight 130 may be on a rear surface of the display panel 110 andmay irradiate light onto the rear surface of the display panel 110. Thebacklight 130 according to an embodiment of the present disclosure mayinclude a light guide part 131, a light source part, a reflective sheet133, and an optical sheet part 135.

The light guide part 131 may include a light incident surface which isdisposed on the rear cover 300 to overlap the display panel 110 and isprovided on at least one sidewall thereof. The light guide part 131 mayinclude a light-transmitting plastic or glass material. The light guidepart 131 may transfer (or output) light, which is incident through thelight incident surface from the light source unit, to the display panel110. For example, the light guide part 131 may be referred to as a lightguide member or a flat light source, but embodiments of the presentdisclosure are not limited thereto.

The light source part may irradiate light onto the light incidentsurface in the light guide part 131. The light source part may bedisposed on the rear cover 300 to overlap a first periphery of thedisplay panel 110. The light source part according to an embodiment ofthe present disclosure may include a plurality of light emitting diode(LED) devices which are mounted on a light source printed circuit board(PCB) and irradiate lights onto the light incident surface of the lightguide part 131.

The reflective sheet 133 may be disposed on the rear cover 300 to becovered a rear surface 300 of the light guide part 131. The reflectivesheet 133 may reflect light, which is incident from the light guide part131, toward the light guide part 131 to minimize or reduce the loss ofthe light.

The optical sheet part 135 may be disposed on a front surface of thelight guide part 131 and may enhance a luminance characteristic of lightoutput from the light guide part 131. The optical sheet part 135according to an embodiment of the present disclosure may include asecond diffusive sheet, a second prism sheet, and a first prism sheet.For example, the optical sheet part 135 may be configured a single layerincluding the second diffusive sheet, the second prism sheet, and thefirst prism sheet, but embodiments of the present disclosure are notlimited thereto. For example, the optical sheet part 135 may beconfigured by a stacked combination of one or more sheets among adiffusive sheet, a prism sheet, a dual brightness enhancement film(DBEF), and a lenticular sheet, or may be configured with one compositesheet having a light diffusing function and a light collecting function.

The supporting part 200 may support a rear periphery region EA of thedisplay panel 110. The supporting part 200 may be supported by oraccommodated into the rear cover 300 to overlap a rear periphery regionEA of the display panel 110. The supporting part 200 may be disposedunder the rear periphery region EA of the display panel 110 not toprotrude to the outside of each side surface of the display panel 110.

The supporting part 200 may include a supporting portion 210 and a guidesidewall 230. For example, the supporting part 200 may have across-sectional structure having a

-shape or a

-shape, based on a coupling or connection structure of the supportingportion 210 and the guide sidewall 230.

The supporting portion 210 may be coupled or connected to the rearperiphery region EA of the display panel 110 and may be supported by therear cover 300. For example, the supporting portion 210 may have atetragonal band (or belt) shape including an opening portion overlappingthe middle region MA, other than the rear periphery region EA, of thedisplay panel 110, but embodiments of the present disclosure are notlimited thereto. The supporting portion 210 may have a size equal to orless than that of the display panel 110 not to protrude to the outsideof each side surface of the display panel 110. For example, the openingportion of the supporting portion 210 may have a size which is equal toor greater than that of a pixel array (or a display portion) in thedisplay panel 110.

The supporting portion 210 may directly contact an uppermost surface ofthe backlight 130 (for example, an uppermost surface of the opticalsheet part 135), or may be spaced apart from the uppermost surface ofthe optical sheet part 135 by a certain distance.

The guide sidewall 230 may be connected to the supporting portion 210and may surround side surfaces of the rear cover 300. For example, theguide sidewall 230 may be bent from the supporting portion 210 to theside surfaces of the rear cover 300 and may surround the side surfacesof the rear cover 300 or may be surround by the side surfaces of therear cover 300.

The supporting part 200 according to an embodiment of the presentdisclosure may include a plastic material, a metal material, or a mixedmaterial of a plastic material and a metal material, but embodiments ofthe present disclosure are not limited thereto. For example, thesupporting part 200 may act as a vibration transfer member whichtransfers a sound vibration, generated by the vibration generatingmodule 400, to the rear periphery region EA of the display panel 110.Therefore, the supporting part 200 may transfer the sound vibration,generated by the vibration generating module 400, to the display panel110 without being lost in a state of maintaining stiffness of thedisplay panel 110. For example, the supporting part 200 may include ametal material for transferring the sound vibration, generated by thevibration generating module 400, to the display panel 110 without beinglost in a state of maintaining stiffness of the display panel 110, butembodiments of the present disclosure are not limited thereto.

The supporting part 200 according to an embodiment of the presentdisclosure may be coupled or connected to the rear periphery region EAof the display panel 110 by a first connection member 250.

The first connection member 250 may be between the rear periphery regionEA of the display panel 110 and the supporting portion 210 of thesupporting part 200, and may dispose or couple the display panel 110 onthe supporting part 200. The first connection member 250 according to anembodiment of the present disclosure may include an acryl-based adhesivemember or a urethane-based adhesive member, but embodiments of thepresent disclosure are not limited thereto. For example, the firstconnection member 250 may include the acryl-based adhesive member whichis relatively better in adhesive force and hardness so that thevibration of the supporting part 200 can be well transferred to thedisplay panel 110. For example, the first connection member 250 mayinclude a double-sided foam adhesive pad having an acryl-based adhesivelayer, or an acryl-based adhesive resin curing layer.

A front surface of the first connection member 250 according to anembodiment of present disclosure may be coupled or connected to thesecond substrate 113 or the second polarization member 115 of thedisplay panel 110. For example, the first connection member 250 may bedirectly coupled or connected to a rear periphery region EA of thesecond substrate 113 to enhance an adhesive force between the firstconnection member 250 and the display panel 110. For example, the firstconnection member 250 may be attached on a rear periphery region EA ofthe second substrate 113, and may surround a side surface of the secondpolarization member 115, thereby preventing light leakage of the sidesurface from occurring in the second polarization member 115.

The first connection member 250 may provide a sound transfer space STSbetween the display panel 110 and the supporting part 200 to have acertain thickness (or height). The first connection member 250 accordingto an embodiment of the present disclosure may have a four-side-closedshape or a closed loop shape on the supporting portion 210 of thesupporting part 200, but embodiments of the present disclosure are notlimited thereto. For example, the first connection member 250 mayprovide the closed sound transfer space STS between a rearmost surfaceof the display panel 110 and an uppermost surface of the backlight 130which face each other with the opening portion of the supporting part200 therebetween, thereby preventing or minimizing the leakage (or loss)of a sound pressure transferred to the sound transfer space STS. Thesound transfer space STS may also act as a sound generating space wherea sound pressure is generated based on a vibration of the backlight 130or a panel vibration space which enables a vibration of the displaypanel 110 to be smoothly performed.

With reference to FIGS. 2 to 6, the vibration generating module 400 maybe disposed in the periphery region EA of the rear cover 300. Forexample, the vibration generating module 400 may be disposed along theperiphery region EA of the rear cover 300.

The vibration generating module 400 may be disposed in the rear regionof the rear cover 300 and may vibrate a region of the display module100. For example, the region of the display module 100 may overlap theperiphery region EA of the display module 100, the region of the displaymodule 100 may be the periphery region EA of the display module 100.

The vibration generating module 400 according to an embodiment of thepresent disclosure may be coupled to or disposed on the periphery regionEA among the rear portion 310 of the rear cover 300. Therefore, inresponse to a sound signal (or a voice signal) input from the outside,the vibration generating module 400 may vibrate the periphery region EAof the rear portion 310 to generate a sound pressure and may vibrate theperiphery region EA of the display panel 110 with the sound pressure togenerate the sound S1. The vibration generating module 400 according toan embodiment of the present disclosure may include a sound actuator ora sound exciter, but embodiments of the present disclosure are notlimited thereto. For example, the vibration generating module 400 may beimplemented as a sound generating device using a coil (or a voice coil)and a magnet.

FIG. 4 illustrates a sound generating device according to an embodimentof the present disclosure.

The vibration generating module 400 according to an embodiment of thepresent disclosure may include a first sound generating device 410 and asecond sound generating device 430.

With reference to FIGS. 2 to 4, the first and second sound generatingparts 410 and 430 according to an embodiment of the present disclosuremay each include a module frame 401, a bobbin 402, a magnet member 403,a coil 404, a center pole 405, and a damper 406.

The module frame 401 may be supported by the rear portion 310. Themodule frame 401 according to an embodiment of the present disclosuremay include a frame body 401 a, a first plate 401 b, and a bracket 401c.

The frame body 401 a may be fixed to the rear portion 310, and the framebody 401 a may act as a lower plate or a second plate, which may supportthe magnet member 403.

The first plate 401 b may be disposed to a periphery of a front surfacethe frame body 401 a to have a cylindrical shape including a hollowportion. The frame body 401 a and the first plate 401 b may be providedas one body having a U-shape. For example, the frame body 401 a and thefirst plate 401 b are not limited to these terms, and may be referred toas a yoke, etc.

The bracket or fixing bracket 401 c may protrude from a side surface ofthe upper plate 401 b. The bracket 401 c may be fixed to the rearportion 310 by a module connection member, and through this, the moduleframe 401 may be fixed to the rear portion 310.

The module connection member according to an embodiment of the presentdisclosure may be a screw or a bolt, which may pass through the bracket401 c, and may be coupled to the rear portion 310 of the rear cover 300.For example, a buffer ring may be between the rear portion 310 of therear cover 300 and the bracket 401 c, and the buffer ring may prevent avibration of the rear portion 310 from being transferred to the moduleframe 401.

The module connection member according to an embodiment of the presentdisclosure may fix a bracket 401 c or a module frame 401 to the rearportion 310. For example, the module connection member may include anadhesive member disposed between the bracket 401 c and the rear portion310. For example, the adhesive member may include a single-sided tape, asingle-sided adhesive pad, a single-sided adhesive gap pad, asingle-sided adhesive foam pad, a double-sided tape, a double-sidedadhesive pad, a double-sided adhesive gap pad, or a double-sidedadhesive foam pad, but embodiments of the present disclosure are notlimited thereto.

The bobbin 402 may be on the module frame 401 and may vibrate the rearportion 310 of the rear cover 300. The bobbin 402 according to anembodiment of the present disclosure may have a cylindrical shapeincluding the hollow portion 402 a and may be coupled to a rear surfaceof the rear portion 310. For example, the bobbin 402 may have a ringstructure, which may be formed of a material produced by processing pulpor paper, Al or Mg or an alloy thereof, synthetic resin such aspolypropylene, or a polyamide-based fiber, but embodiments of thepresent disclosure are not limited thereto. The bobbin 402 may vibratebased on a magnetic force, and for example, may perform a verticalreciprocating motion, thereby vibrating the rear cover 300.

The bobbin 402 according to an embodiment of the present disclosure mayhave a circular shape or an elliptical (or oval shape), but embodimentsof the present disclosure are not limited thereto. The bobbin 402 havingthe oval shape may have an elliptical shape, a corners-roundedrectangular shape, or a non-circular curved shape having a widthdifferent from its height, but embodiments of the present disclosure arenot limited thereto. For example, in the bobbin 402 having the ovalshape, a ratio of a long-axis diameter and a short-axis diameter may be1.3:1 to 2:1. The bobbin 402 having the oval shape may more improve asound of the high-pitched sound band than the circular shape and mayreduce heat caused by a vibration, and thus, the bobbin 402 having theoval shape may have a good heat dissipation characteristic.

The magnet member 403 may be provided on the module frame 401 to beaccommodated into the hollow portion 402 a of the bobbin 402. The magnetmember 403 may be a permanent magnet having a cylindrical shape to beaccommodated into the hollow portion 402 a of the bobbin 402. The magnetmember 403 according to an embodiment of the present disclosure may beimplemented with a sintered magnet, such as barium ferrite, and amaterial of the magnet member 403 may include one or more of: ferricoxide (Fe₂O₃); barium carbonate (or witherite) (BaCO₃); neodymium (Nd);strontium ferrite (Fe₁₂O₁₉Sr) with an improved magnet component; and analloy cast magnet including aluminum (Al), nickel (Ni), cobalt (Co),and/or the like, but embodiments of the present disclosure are notlimited thereto. For example, the neodymium magnet may beneodymium-iron-boron (Nd—Fe—B), but embodiments of the presentdisclosure are not limited thereto.

The coil 404 may be wound to surround an outer circumference surface ofthe bobbin 402 and may be supplied with a sound signal (or a voicesignal) from the outside. The coil 404 may be raised or lowered alongwith the bobbin 402. When a sound signal (or a current) is applied tothe coil 404, a whole portion of the bobbin 402 may vibrate, forexample, may perform a vertical reciprocating motion, according toFleming's left hand rule based on an application magnetic fieldgenerated around the coil 404 and an external magnetic field generatedaround the magnet member 403. For example, the coil 404 may be referredto as a voice coil, but embodiments of the present disclosure are notlimited thereto.

The center pole 405 may be on the magnet member 403, and may guide avibration of the bobbin 402. For example, the center pole 405 may beinserted or accommodated into the hollow portion of the bobbin 402, andmay be surrounded by the bobbin 402. For example, the center pole 405may be referred to as an “elevation guider” or “pole pieces,” butembodiments of the present disclosure are not limited thereto.

The damper 406 may be between the module frame 401 and the bobbin 402.For example, the damper 406 may be between the frame body 401 a of themodule frame 401 and an upper outer circumference surface of the bobbin402. The damper 406 may be provided in a creased structure that may becreased between one end and the other end thereof and may be contractedand relaxed based on a vibration of the bobbin 402. A vibration distance(or a vertical movement distance) of the bobbin 402 may be limited by arestoring force of the damper 406. As one example, when the bobbin 402vibrates by a certain distance or more or vibrates by a certain distanceor less, the bobbin 402 may be restored to an original position by therestoring force of the damper 406. For example, the damper 406 may bereferred to as a “spider,” a “suspension,” or an “edge,” but embodimentsof the present disclosure are not limited thereto.

Each of the first and second sound generating devices 410 and 430according to an embodiment of the present disclosure may be referred toas an internal magnetic type (or a micro type) such that the magnetmember 403 may be inserted into the hollow portion 402 a of the bobbin402.

Each of the first and second sound generating devices 410 and 430according to another embodiment of the present disclosure may bereferred to as an external magnetic type (or a dynamic type) such thatthe magnet member 403 is disposed to surround an outer portion of thebobbin 402. For example, except for that the magnet member 403 may beprovided between the frame body 401 a and the first plate 401 b, and thecenter pole 405 may be provided on the second plate (such as the framebody 401 a) to be inserted or accommodated into the hollow portion ofthe bobbin 402, the external magnetic type sound generating devices 410and 430 may be substantially similar to the internal magnetic type.Thus, detailed descriptions are omitted.

Each of the first and second sound generating devices 410 and 430according to an embodiment of the present disclosure may further includea bobbin protection member 407 between an upper portion of the bobbin402 and the rear portion 310 of the rear cover 300.

The bobbin protection member 407 may be provided in a cylindricalstructure including an opening overlapping the hollow portion 402 a ofthe bobbin 402 and may be disposed or coupled to an upper surface of thebobbin 402. The bobbin protection member 407 may cover the upper surfaceof the bobbin 402 to protect the bobbin 402, thereby preventingdeformation of the bobbin 402 caused by an external impact.

The bobbin protection member 407 according to an embodiment of thepresent disclosure may be provided in a molding form of an injectionmaterial or a mold product of metal. For example, the bobbin protectionmember 407 may include a textile reinforced material, a composite resinincluding a textile reinforced material, or metal, and for example, mayhave a heat dissipation function of dissipating heat occurring when thefirst and second sound generating devices 410 and 430 are being driven.The textile reinforced material may be one of carbon fiber reinforcedplastics (CFRP), glass fiber reinforced plastics (GFRP), and graphitefiber reinforced plastics (GFRP), or a combination thereof, butembodiments of the present disclosure are not limited thereto.

The bobbin protection member 407 may be coupled or connected to thebobbin 402 by a double-sided tape or an adhesive resin. For example, theadhesive resin may be an epoxy resin or an acryl resin, but embodimentsof the present disclosure are not limited thereto.

The bobbin protection member 407 may be coupled or connected to the rearportion 310 of the rear cover 300 by a double-sided tape or an adhesiveresin.

With reference to FIG. 6, a display module 100 according to anembodiment of the present disclosure may include a display panel 110 anda backlight 130.

The display panel 110 may be configured to display an image using lightirradiated from the backlight 130. The display panel 110 may act as avibration plate which vibrates based on a vibration of the vibrationgenerating module 400 to output sound S1 to a forward region FD in frontof the display panel 110. For example, the display panel 110 may outputthe sound S1 according to the vibration of the vibration generatingmodule 400.

The first sound generating device 410 may vibrate a first peripheryregion EA1 (or a left periphery region) of the periphery region EA ofthe display module 100 to output a sound S1 to the forward region FD infront of the display panel 110. For example, when the first soundgenerating device 410 vibrates based on a sound signal, the firstperiphery region EA1 (or a first rear region) of the rear portion 310may vibrate based on the vibration of the first sound generating device410 to generate a sound pressure in a gap space GS (or a soundoutputting space) between the first sound generating device 410 and therear cover 300, thereby vibrating the first periphery region EA1 of thedisplay module 100 to generate the sound S1. For example, when the firstsound generating device 410 vibrates according to the sound signal, thefirst periphery region EA1 of the rear portion 310 may vibrate based onthe vibration of the first sound generating device 410 to generate asound pressure in the gap space GS, the backlight 130 may vibrate basedon the generated sound pressure to generate a sound pressure in thesound transfer space STS, and the display panel 110 may vibrate based onthe sound pressure transferred to the sound transfer space STS togenerate the sound S1, thereby outputting the sound S1 to the forwardregion FD in front of the display panel 110. Accordingly, the sound wave(or sound pressure) generated based on the vibration of the first soundgenerating device 410 may be directly transferred (or propagated) to thedisplay module 100, thereby enhancing the sound pressure characteristicand sound quality of the sound S1.

The second sound generating device 430 may vibrate a second peripheryregion EA2 (or a right periphery region) of the periphery region EA ofthe display module 100 to output a sound S1 to the forward region FD infront of the display panel 110. For example, when the second soundgenerating device 430 vibrates based on a sound signal, the secondperiphery region EA2 (or a second rear region) of the rear portion 310may vibrate based on the vibration of the second sound generating device430 to generate a sound pressure in a gap space GS (or a soundoutputting space) between the second sound generating device 410 and therear cover 300, thereby vibrating the second periphery region EA2 of thedisplay module 100 to generate the sound S1. For example, when thesecond sound generating device 430 vibrates according to the soundsignal, the second periphery region EA2 of the rear portion 310 mayvibrate based on the vibration of the second sound generating device 430to generate a sound pressure in the gap space GS, the backlight 130 mayvibrate based on the generated sound pressure to generate a soundpressure in the sound transfer space STS, and the display panel 110 mayvibrate based on the sound pressure transferred to the sound transferspace STS to generate the sound S1, thereby outputting the sound S1 tothe forward region FD in front of the display panel 110. Accordingly,the sound wave (or sound pressure) generated based on the vibration ofthe second sound generating device 430 may be directly transferred (orpropagated) to the display module 100, thereby enhancing the soundpressure characteristic and sound quality of the sound S1.

With reference to FIGS. 3 to 6, the first sound generating device 410and the second sound generating device 430 according to an embodiment ofthe present disclosure may be disposed at a rear periphery of the rearcover 300. For example, the first sound generating device 410 and thesecond sound generating device 430 may be disposed apart from a rearsurface of the rear cover 300. For example, the first sound generatingdevice 410 and the second sound generating device 430 may be disposed atthe rear cover 300 by a second connection member 800. For example, thesecond connection member 800 may be disposed between the first soundgenerating device 410 and the rear cover 300, and disposed between thesecond sound generating device 430 and the rear cover 300.

The second connection member 800 may be implemented to include anopening portion or an open region, for solving a problem where soundsgenerated by the first sound generating device 410 and the second soundgenerating device 430 are blocked between each of the first soundgenerating device 410 and the second sound generating device 430 and therear cover 300. For example, the second connection member 800 mayinclude an opening portion or an open region, which is provided at aside surface thereof. For example, the second connection member 800 mayhave a structure where the side surface thereof is open. For example,one side surface of the second connection member 800 may be open. Forexample, the sounds of the first sound generating device 410 and thesecond sound generating device 430 may be output to a lateral region (orlateral direction) in side of the rear cover 300 through the one sidesurface of the second connection member 800. Accordingly, the firstsound generating device 410 and the second sound generating device 430may be disposed at the rear cover 300, and the sounds of the first soundgenerating device 410 and the second sound generating device 430 may beoutput to a rearward region (or a rearward direction) in rear and alateral region in side of the rear cover 300.

With reference to FIG. 6, the sounds of the first sound generatingdevice 410 and the second sound generating device 430 may be output inthe rearward direction and the lateral direction of the rear cover 300by the second connection member 800 including the opening portion or theopen region. Therefore, a path of the sounds generated by the firstsound generating device 410 and the second sound generating device 430may be a first sound path SP1. For example, when the first soundgenerating device 410 and the second sound generating device 430 areprovided, a problem where a sound of a high-pitched sound band is notoutput due to a sound output through or via the first sound path SP1 maybe solved.

With reference to FIGS. 4 to 6, the vibration generating module 400according to an embodiment of the present disclosure may further includea first hole 409. The first hole 409 may prevent dust or particles fromflowing into the vibration generating module 400 due to the secondconnection member 800 including the opening portion or the open region.For example, the first hole 409 may include a plurality of holes whichcommunicate with a space between the periphery of the rear cover 300 andthe first and second sound generating devices 410 and 430. The firsthole 409 may have a mesh structure, but embodiments of the presentdisclosure are not limited thereto. For example, the first hole 409 maybe disposed at a cover 408 disposed near the bracket 401 c. The cover408 may be implemented independently from the bracket 401 c, butembodiments of the present disclosure are not limited thereto. Forexample, the cover 408 may be provided as one body with the bracket 401c. For example, the cover 408 may be implemented to cover or occlude allor a portion of the opening portion (or the open region) of the secondconnection member 800.

Therefore, in the vibration generating module 400 according to anembodiment of the present disclosure, a connection member which isdisposed in the periphery region EA of the rear cover 300 and betweenthe rear cover 300 and the vibration generating module 400 and where oneside or one side surface thereof is open may be provided, and thus, asound may be output in the rearward direction and the lateral directionwith respect to the rear cover. For example, in the sound generatingdevices 410 and 430 according to an embodiment of the presentdisclosure, a connection member which is disposed in the peripheryregion EA of the rear cover 300 and between the rear cover 300 and thesound generating devices 410 and 430 and where one side surface thereofis open may be provided, and thus, a sound may be output in the rearwarddirection and the lateral direction with respect to the rear cover.Accordingly, a display apparatus including a vibration generating modulefor outputting a sound of the high-pitched sound band may be provided.

FIG. 7 is an exploded view of a display apparatus according to anotherembodiment of the present disclosure. FIG. 8 illustrates a displayapparatus according to another embodiment of the present disclosure.

With reference to FIGS. 7 and 8, the display apparatus according toanother embodiment of the present disclosure may include a displaymodule 100, a supporting part 200, a rear cover 300, a vibrationgenerating module 400, and a structure 900.

The structure 900 according to an embodiment of the present disclosuremay be disposed at one side or one portion of the display module 100.For example, since the structure 900 is disposed at the one side or oneportion of the display module 100, sounds of first and second soundgenerating devices 410 and 430 may be reflected by the structure 900 andmay be output in a forward direction with respect to the display module100. For example, the structure 900 may be a sound guide structure whichguides a sound of the vibration generating module 400 so as to be outputin the forward direction or a lateral direction of the display module100. For example, the structure 900 and/or a connection member where oneside or one side surface thereof is open may be a sound guide structurewhich guides a sound of the vibration generating module 400 so as to beoutput in the forward direction or the lateral direction of the displaymodule 100. A sound of the vibration generating module 400 may bereflected by a side surface of the structure 900 and may be output inthe forward direction of the display module 100, thereby providing adisplay apparatus for outputting a sound of the high-pitched sound band.

For example, the structure 900 may include a bottom portion 910, a soundguide portion 920, a side portion 930, and a groove portion 950. Thegroove portion 950 may be a portion at which the vibration generatingmodule 400 is disposed and may be disposed at one side (or portion) ofthe bottom portion 910. The bottom portion 910 may be disposed at a rearsurface of the rear cover 300. The side portion 930 may be spaced apartfrom one side surface or one portion of the display module 100 and maybe connected to the bottom portion 910. The sound guide portion 920 maybe disposed between the bottom portion 910 and the side portion 930 andmay be a corner portion between an inner surface of the side portion 930and the bottom portion 910. For example, the sound guide portion 920 mayallow the sound of the vibration generating module 400 to be reflectedby the sound guide portion 920 and output in a forward direction of thedisplay module 100. Therefore, the sound of the vibration generatingmodule 400 may be structured to be reflected by the structure 900 andoutput in the forward direction of the display module 100. For example,the sounds of the first and second sound generating devices 410 and 430may be structured to be reflected by the structure 900 and output in theforward direction of the display module 100. For example, the soundguide portion 920 may be implemented in a curve shape or acorner-rounded shape. For example, when the sound guide portion 920 hasa curve shape or a corner-rounded shape, reflection of a sound travelingin a gap space GS (or a sound outputting space) between the vibrationgenerating module 400 and the rear cover 300 may be more enhanced. Forexample, a path of a sound generated by the vibration generating module400 may be a second sound path SP2. For example, a path of each of thesounds generated by the first sound generating device 410 and the secondsound generating device 430 may be the second sound path SP2. Forexample, the second sound path SP2 may include a forward direction and alateral direction of the display module 100. For example, the secondsound path SP2 may include a forward direction (or a thickness directionof the display module) and a lateral direction in which a sound travelsin the gap space GS (or the sound outputting space) between thevibration generating module 400 and the rear cover 300. For example, thesecond sound path SP2 may include a forward direction and a lateraldirection in which a sound is reflected from the gap space GS (or thesound outputting space) between the vibration generating module 400 andthe rear cover 300, and for example, may include a forward direction anda lateral direction in which a sound is output through or via the secondconnection member 800.

FIG. 9 illustrates a display apparatus according to another embodimentof the present disclosure. Even if it is not illustrated additionallythe rear surface of the rear cover or the rear cover itself could bealso inclined.

With reference to FIG. 9, a vibration generating module 400 may bedisposed to be inclined with respect to a rear surface of a rear cover300. For example, the vibration generating module 400 may be disposed tobe inclined by a second connection member 800 whose one side (orportion) is open. For example, the vibration generating module 400 maybe inclined by a height of the second connection member 800. Forexample, the second connection member 800 may have a height which isprogressively reduced from one portion thereof to the other portionopposite to the one portion. For example, the second connection member800 may include a first side parallel to the one portion thereof, asecond side connected to one end (or portion) of the first side, and athird side connected to the other end (or portion) of the first side inparallel with the second side, and a height of each of the second sideand the third side may have a lower height (a thickness) as it nears thefirst side.

For example, a degree to which the vibration generating module 400 isinclined may vary from one side (or portion) of the rear cover 300 tothe other side (or portion) thereof so that a sound output at a sidesurface of the display module 100 is enhanced. For example, when a side(or portion) at which the second connection member 800 is disposed isthe one side (or portion) of the rear cover 300, a degree to which thevibration generating module 400 is inclined may increase from the oneside (or portion) of the rear cover 300 to the other side (or portion)thereof. Therefore, a sound of the vibration generating module 400 maybe efficiently output at the other side (or portion) of the secondconnection member 800 whose the one side (or portion) is open. Forexample, the sound of the vibration generating module 400 may bereflected between the vibration generating module 400 and a rear surfaceof the rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sound of the vibration generatingmodule 400 may be reflected by a side surface of the structure 900 andmay be output in the forward direction of the display module 100. Forexample, the inclined vibration generating module 400 and the secondconnection member 800 whose the one side (or portion) or the one sidesurface is open may include a sound guide structure which guides thesound of the vibration generating module 400 so to be output in theforward direction or a lateral direction of the display module 100. Forexample, the inclined vibration generating module 400 and the secondconnection member 800, whose the one side (or portion) or the one sidesurface is open, and/or the structure 900 may include a sound guidestructure which guides the sound of the vibration generating module 400so to be output in the forward direction or the lateral direction of thedisplay module 100. Accordingly, since a connection member whose oneside or one side surface is open is provided, the sound of the vibrationgenerating module 400 may be output in the lateral direction, a regionwhere a sound between the rear cover 300 and the vibration generatingmodule 400 is reflected may be increased by the inclined vibrationgenerating module 400, and a sound may be reflected by a side surface ofthe structure 900 and may be output in the forward direction of thedisplay module 100, thereby more enhancing a sound characteristic of thehigh-pitched sound band.

For example, a path of a sound generated by the vibration generatingmodule 400 may be a third sound path SP3. For example, a path of thesounds generated by the first sound generating device 410 and the secondsound generating device 430 may be the third sound path SP3. Forexample, the third sound path SP3 may be a forward direction (or athickness direction of the display module) and a lateral direction inwhich a sound is reflected by a rear surface of the display module 100.For example, the third sound path SP3 may be a forward direction and alateral direction in which a sound is reflected from the gap space GS(or the sound outputting space) between the vibration generating module400 and the rear cover 300, and may be a forward direction and a lateraldirection in which a sound is output through the second connectionmember 800. For example, the third sound path SP3 may be a forwarddirection and a lateral direction in which a sound is reflected from thegap space GS (or the sound outputting space) between the vibrationgenerating module 400 and the rear cover 300, and may be a forwarddirection in which a sound is reflected by the side surface of thestructure 900. Accordingly, a display apparatus for more enhancing asound of the high-pitched sound band may be provided.

FIG. 10 illustrates a rear surface of a display apparatus according toanother embodiment of the present disclosure. FIG. 11 is a view fromabove of a display apparatus according to another embodiment of thepresent disclosure. FIG. 12 illustrates a display apparatus according toanother embodiment of the present disclosure. FIGS. 10 to 12 illustratean embodiment of the present disclosure implemented by modifying astructure of a rear cover in the display apparatus illustrated in FIG.8. Hereinafter, therefore, a rear cover will be described in detail, theother elements are referred to by the same reference numerals as FIG. 8,and their repetitive descriptions are omitted or will be briefly given.

With reference to FIGS. 10 to 12, the display apparatus according toanother embodiment of the present disclosure may include a displaymodule 100, a supporting part 200, a rear cover 300, a vibrationgenerating module 400, and a structure 900.

The rear cover 300 according to another embodiment of the presentdisclosure may further include at least one second hole 420. The atleast one second hole 420 may overlap the vibration generating module400. For example, the at least one second hole 420 may overlap first andsecond sound generating devices 410 and 430. For example, the at leastone second hole 420 may be formed by a patterning process or a punchingprocess performed on the rear cover 300, but embodiments of the presentdisclosure are not limited thereto.

For example, the at least one second hole 420 may enhance a reflectioncharacteristic of a sound between the rear cover 300 and the vibrationgenerating module 400, thereby enhancing a sound of the high-pitchedsound band. For example, the at least one second hole 420 may enhance areflection characteristic of a sound between the rear cover 300 and thefirst and second sound generating devices 410 and 430, thereby enhancinga sound of the high-pitched sound band. For example, the rear cover 300including the at least one second hole 420 and a connection member 800whose one side (or portion) or one side surface is open may include asound guide structure which guides a sound of the vibration generatingmodule 400 so to be output in a forward direction or a lateral directionof the display module 100. For example, the rear cover 300 including theat least one second hole 420 may include a sound guide structure whichguides the sound of the vibration generating module 400 so to be outputin the forward direction or the lateral direction of the display module100. For example, the rear cover 300 including the at least one secondhole 420 may include a sound guide structure which guides sounds of thefirst and second sound generating devices 410 and 430 so to be output inthe forward direction or the lateral direction of the display module100. For example, the rear cover 300 including the at least one secondhole 420 and the connection member 800, whose the one side (or portion)or the one side surface is open, and/or the structure 900 may include asound guide structure which guides the sound of the vibration generatingmodule 400 so to be output in the forward direction or the lateraldirection of the display module 100. For example, the rear cover 300including the at least one second hole 420 and/or the structure 900 mayinclude a sound guide structure which guides the sounds of the first andsecond sound generating devices 410 and 430 so to be output in theforward direction or the lateral direction of the display module 100.

For example, the sound of the vibration generating module 400 may beoutput through or via a second hole 420 in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be output through or via thesecond hole 420 in the forward direction of the display module 100. Forexample, a path of the sounds generated by the first sound generatingdevice 410 and the second sound generating device 430 through the secondhole 420 may be a fourth sound path SP4. For example, the fourth soundpath SP4 may be a forward direction (or a thickness direction of thedisplay module) and a lateral direction in which a sound is output by arear surface of the display module 100 through or via the second hole420. For example, the fourth sound path SP4 may be a forward directionin which a sound is output in a gap space GS (or a sound outputtingspace) between the vibration generating module 400 and the rear cover300. For example, a path of the sound generated by the vibrationgenerating module 400 may be a fifth sound path SP5. For example, a pathof sounds generated by the first sound generating device 410 and thesecond sound generating device 430 may be a fifth sound path SP5. Forexample, the fifth sound path SP5 may be a forward direction (or athickness direction of the display module) and a lateral direction inwhich a sound is reflected by the rear surface of the display module100. For example, the fifth sound path SP5 may be a direction in whichthe sound of the vibration generating module 400 is reflected by a sidesurface of the structure 900 and is output in the forward direction ofthe display module 100. For example, the fifth sound path SP5 may be aforward direction and a lateral direction in which a sound is reflectedfrom the gap space GS (or the sound outputting space) between thevibration generating module 400 and the rear cover 300, and may be aforward direction and a lateral direction in which a sound is outputthrough the second connection member 800. For example, the fifth soundpath SP5 may be a direction in which the sounds of the first soundgenerating device 410 and the second sound generating device 430 arereflected by the side surface of the structure 900 and are output in theforward direction of the display module 100. For example, the fifthsound path SP5 may be a forward direction and a lateral direction inwhich a sound is reflected from the gap space GS (or the soundoutputting space) between the vibration generating module 400 and therear cover 300. Therefore, a sound by the vibration generating module400 may be output through the fourth sound path SP4 and the fifth soundpath SP5, thereby providing a display apparatus for more enhancing asound of the high-pitched sound band. For example, sounds may be outputby the first and second sound generating devices 410 and 430 through orvia the fourth sound path SP4 and the fifth sound path SP5, therebyproviding a display apparatus for more enhancing a sound of thehigh-pitched sound band.

As described above with respect to FIG. 9, the vibration generatingmodule 400 may be disposed to be inclined with respect to a rear surfaceof the rear cover 300. For example, the first and second soundgenerating devices 410 and 430 may be disposed to be inclined withrespect to the rear surface of the rear cover 300. For example, thesound of the vibration generating module 400 may be reflected betweenthe vibration generating module 400 and the rear surface of the rearcover 300 and may be output through the at least one second hole 420 inthe forward direction of the display module 100. For example, the soundsof the first and second sound generating devices 410 and 430 may bereflected between the first and second sound generating devices 410 and430 and the rear surface of the rear cover 300 and may be output throughor via the at least one second hole 420 in the forward direction of thedisplay module 100. Accordingly, since a connection member whose oneside or one side surface is open is provided, the sound of the vibrationgenerating module 400 may be output in the lateral direction, and aregion where a sound between the rear cover 300 and the vibrationgenerating module 400 is reflected may be increased by the inclinedvibration generating module 400, thereby enhancing a soundcharacteristic of the high-pitched sound band of the vibrationgenerating module 400. Therefore, a region where a sound between therear cover 300 and the vibration generating module 400 is reflected maybe increased by the inclined vibration generating module 400, the soundmay be output through the second hole 420 in the forward direction ofthe display module 100, and the sound may be reflected by a side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100, thereby more enhancing a sound characteristic of thehigh-pitched sound band and enhancing a sound of the low-pitched soundband. For example, a region where a sound of each of the first andsecond sound generating devices 410 and 430 is reflected may increasedue to a sound reflected by the rear cover 300, the sound may be outputthrough the second hole 420 in the forward direction of the displaymodule 100, and the sound may be reflected by the side surface of thestructure 900 and may be output in the forward direction of the displaymodule 100, thereby more enhancing a sound characteristic of thehigh-pitched sound band and enhancing a sound of the low-pitched soundband.

FIG. 13 illustrates a display apparatus according to another embodimentof the present disclosure. FIG. 14 illustrates a display apparatusaccording to another embodiment of the present disclosure. FIGS. 13 and14 illustrate another embodiment of the present disclosure implementedby modifying a structure of a rear cover in the display apparatusillustrated in FIG. 12. Hereinafter, therefore, a rear cover will bedescribed in detail, the other elements are referred to by the samereference numerals as FIG. 12, and their repetitive descriptions areomitted or will be briefly given.

With reference to FIGS. 13 and 14, a rear cover 300 may be disposed tobe inclined with respect to a vibration generating module 400. Forexample, the rear cover 300 may be disposed to be inclined with respectto first and second sound generating devices 410 and 430. For example,the rear cover 300 may include at least one hole 420, and the at leastone hole 420 may vary or change toward a center portion of the rearcover 300.

For example, the rear cover 300 including the at least one hole 420 ofFIG. 13 may be formed through press forming or press molding, butembodiments of the present disclosure are not limited thereto. Forexample, at least one pattern 420 of FIG. 14 may be formed by apatterning process or a punching process performed on the rear cover300, but embodiments of the present disclosure are not limited thereto.At least one hole 420 of FIG. 14 may be at least one pattern. Forexample, the at least one hole or pattern 420 may be formed bypatterning, chemical-etching, or drilling the rear cover 300 ornumerical control (NC) processing (for example, processing by anumerical control machine tool) or laser processing performed on therear cover 300, but embodiments of the present disclosure are notlimited thereto.

For example, the at least one hole or pattern 420 may be implemented toenhance a sound output at a side surface of the display module 100. Forexample, the at least one hole or pattern 420 may have a height which isprogressively reduced from one side (or portion) thereof to the otherside (or portion) opposite to the one side (or portion). For example,the at least one hole or structural pattern 420 may vary or changetoward a center portion of the rear cover 300. For example, the at leastone hole or pattern 420 may vary from one side (or portion) of thedisplay module 100 to the other side (or portion) thereof. For example,the at least one hole or pattern 420 overlapping the vibrationgenerating module 400 may vary from the one side (or portion) of thedisplay module 100 to the other side (or portion) thereof. For example,the at least one hole or pattern 420 overlapping the first soundgenerating device 410 may vary from the one side (or portion) of thedisplay module 100 to the other side (or portion) thereof. The at leastone hole or pattern 420 overlapping the second sound generating device430 may vary from the other side (or portion) of the display module 100to the one side (or portion) thereof.

For example, a degree to which the rear cover 300 is inclined may varyfrom one side (or portion) of the display module 100 to the other side(or portion) thereof so that a sound output at a side surface of thedisplay module 100 is enhanced. For example, when a side at which thesecond connection member 800 is disposed is the one side (or portion) ofthe display module 100, a degree to which the rear cover 300 is inclinedmay increase from the one side (or portion) of the display module 100 tothe other side (or portion) thereof. Therefore, a sound of the vibrationgenerating module 400 may be efficiently output at the other side of thesecond connection member 800 whose the one side (or portion) is open.For example, sounds of the first and second sound generating devices 410and 430 may be efficiently output at the other side (or portion) of thesecond connection member 800 whose the one side (or portion) is open.For example, the sound of the vibration generating module 400 may bereflected between the vibration generating module 400 and a rear surfaceof the rear cover 300 and may be output in the forward direction of thedisplay module 100, and may be reflected by a side surface of thestructure 900 and may be output in the forward direction of the displaymodule 100. For example, the sounds of the first and second soundgenerating devices 410 and 430 may be reflected between the first andsecond sound generating devices 410 and 430 and the rear surface of therear cover 300 and may be output in the forward direction of the displaymodule 100, and may be reflected by the side surface of the structure900 and may be output in the forward direction of the display module100.

For example, the at least one second hole 420 may enhance a reflectioncharacteristic of a sound between the rear cover 300 and the vibrationgenerating module 400, thereby enhancing a sound of the high-pitchedsound band. For example, the at least one second hole 420 may enhance areflection characteristic of a sound between the rear cover 300 and thefirst and second sound generating devices 410 and 430, thereby enhancinga sound of the high-pitched sound band. For example, the rear cover 300including the at least one second hole 420 and a connection member 800whose one side (or portion) or one side surface is open may include asound guide structure which guides a sound of the vibration generatingmodule 400 so to be output in a forward direction or a lateral directionof the display module 100. For example, the rear cover 300 including theat least one second hole 420 and the connection member 800 whose the oneside (or portion) or the one side surface is open may include a soundguide structure which guides the sounds of the first and second soundgenerating devices 410 and 430 so to be output in the forward directionor the lateral direction of the display module 100. For example, therear cover 300 including the at least one second hole 420 and theconnection member 800, whose the one side (or portion) or the one sidesurface is open, and/or the structure 900 may include a sound guidestructure which guides the sound of the vibration generating module 400so to be output in the forward direction or the lateral direction of thedisplay module 100. For example, the rear cover 300 including the atleast one second hole 420 and the connection member 800, whose the oneside (or portion) or the one side surface is open, and/or the structure900 may include a sound guide structure which guides the sounds of thefirst and second sound generating devices 410 and 430 so to be output inthe forward direction or the lateral direction of the display module100.

With reference to FIG. 13, the sound generated by the vibrationgenerating module 400 may be reflected by a rear surface of the displaymodule 100 and may be output in the lateral direction and the forwarddirection of the display module 100. For example, the sounds generatedby the first and second sound generating devices 410 and 430 may bereflected by the rear surface of the display module 100 and may beoutput in the lateral direction and the forward direction of the displaymodule 100. For example, a path of the sound generated by the vibrationgenerating module 400 may be a sixth sound path SP6. For example, a pathof the sounds generated by the first and second sound generating devices410 and 430 may be the sixth sound path SP6. For example, the sixthsound path SP6 may be a direction in which the sound of the vibrationgenerating module 400 is reflected by a side surface of the structure900 and is output in the forward direction of the display module 100.For example, the sixth sound path SP6 may be a direction in which thesounds of the first and second sound generating devices 410 and 430 arereflected by the side surface of the structure 900 and are output in theforward direction of the display module 100. For example, the sixthsound path SP6 may be a forward direction and a lateral direction inwhich a sound is reflected from the gap space GS (or the soundoutputting space) between the vibration generating module 400 and therear cover 300, and may be a forward direction and a lateral directionin which a sound is output through or via the second connection member800. For example, the sixth sound path SP6 may be a forward directionand a lateral direction in which a sound is reflected from the gap spaceGS (or the sound outputting space) between the vibration generatingmodule 400 and the rear cover 300.

The sound of the vibration generating module 400 may be output throughor via a second hole 420 in the forward direction of the display module100. For example, the sounds of the first and second sound generatingdevices 410 and 430 may be output through or via the second hole 420 inthe forward direction of the display module 100. For example, a path ofthe sound generated by the vibration generating module 400 through orvia the second hole 420 may be a seventh sound path SP7. For example, apath of each of the sounds generated by the first and second soundgenerating devices 410 and 430 through or via the second hole 420 may bethe seventh sound path SP7. For example, the seventh sound path SP7 maybe a forward direction (or a thickness direction of the display module)in which a sound is output by the rear surface of the display module 100through or via the second hole 420. For example, the seventh sound pathSP7 may be a forward direction in which a sound is output in the gapspace GS (or the sound outputting space) between the vibrationgenerating module 400 and the rear cover 300 through or via the secondhole 420. Therefore, a sound by the vibration generating module 400 maybe output through or via the sixth sound path SP6 and the seventh soundpath SP7, thereby providing a display apparatus for more enhancing asound of the high-pitched sound band.

Therefore, a region where a sound between the rear cover 300 and thevibration generating module 400 is reflected may be increased by thevibration generating module 400 including the second hole 420, therebyenhancing a sound of the high-pitched sound band. For example, since aconnection member whose one side (or portion) or one side surface isopen is provided, the sound of the vibration generating module 400 maybe output in the lateral direction, and a region where a sound betweenthe rear cover 300 and the vibration generating module 400 is reflectedmay be increased by the vibration generating module 400 including thesecond hole 420. Therefore, a region where the sound of the vibrationgenerating module 400 is reflected may increase due to a sound reflectedby the rear cover 300, and the sound may be output through the secondhole 420 in the forward direction of the display module 100, therebyproviding a display apparatus for enhancing a sound of the high-pitchedsound band. For example, a region where a sound of each of the first andsecond sound generating devices 410 and 430 is reflected may increasedue to a sound reflected by the rear cover 300, the sound may be outputthrough or via the second hole 420 in the forward direction of thedisplay module 100, and the sound may be reflected by the side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100, thereby providing a display apparatus for enhancinga sound of the high-pitched sound band.

With reference to FIG. 14, the sound generated by the vibrationgenerating module 400 may be reflected by the rear surface of thedisplay module 100 and may be output in the lateral direction and theforward direction of the display module 100. For example, the soundsgenerated by the first and second sound generating devices 410 and 430may be reflected by the rear surface of the display module 100 and maybe output in the lateral direction and the forward direction of thedisplay module 100. For example, a path of the sound generated by thevibration generating module 400 may be an eighth sound path SP8. Forexample, a path of the sounds generated by the first and second soundgenerating devices 410 and 430 may be the eighth sound path SP8. Forexample, the eighth sound path SP8 may be a direction in which the soundof the vibration generating module 400 is reflected by the side surfaceof the structure 900 and is output in the forward direction of thedisplay module 100. For example, the eighth sound path SP8 may be adirection in which the sounds of the first and second sound generatingdevices 410 and 430 are reflected by the side surface of the structure900 and are output in the forward direction of the display module 100.For example, the eighth sound path SP8 may be a forward direction and alateral direction in which a sound is reflected from the gap space GS(or the sound outputting space) between the vibration generating module400 and the rear cover 300, and may be a forward direction and a lateraldirection in which a sound is output through or via the secondconnection member 800. For example, the eighth sound path SP8 may be aforward direction and a lateral direction in which a sound is reflectedfrom the gap space GS (or the sound outputting space) between thevibration generating module 400 and the rear cover 300.

The sound of the vibration generating module 400 may be output through asecond pattern 420 in the forward direction of the display module 100.For example, the sounds of the first and second sound generating devices410 and 430 may be output through the second pattern 420 in the forwarddirection of the display module 100. For example, a path of the soundgenerated by the vibration generating module 400 through or via thesecond pattern 420 may be a ninth sound path SP9. For example, a path ofthe sounds generated by the first and second sound generating devices410 and 430 through or via the second pattern 420 may be the ninth soundpath SP9. For example, the ninth sound path SP9 may be a forwarddirection (or a thickness direction of the display module) in which asound is output by the rear surface of the display module 100 through orvia the second pattern 420. For example, the ninth sound path SP9 may bea forward direction in which a sound is output in the gap space GS (orthe sound outputting space) between the vibration generating module 400and the rear cover 300 through or via the second pattern 420. Therefore,a sound by the vibration generating module 400 may be output through orvia the eighth sound path SP8 and the ninth sound path SP9, therebyproviding a display apparatus for more enhancing a sound of thehigh-pitched sound band.

Therefore, a region where a sound between the rear cover 300 and thevibration generating module 400 is reflected may be increased by therear cover 300 including the second pattern 420, thereby enhancing asound of the high-pitched sound band. For example, since a connectionmember whose one side or one side surface is open is provided, the soundof the vibration generating module 400 may be output in the lateraldirection, and a region where a sound between the rear cover 300 and thevibration generating module 400 is reflected may be increased by therear cover 300 including the second pattern 420. Therefore, a regionwhere the sound of the vibration generating module 400 is reflected mayincrease due to a sound reflected by the rear cover 300, and the soundmay be output through or via the second pattern 420 in the forwarddirection of the display module 100, thereby providing a displayapparatus for enhancing a sound of the high-pitched sound band. Forexample, a region where a sound of each of the first and second soundgenerating devices 410 and 430 is reflected may increase due to a soundreflected by the rear cover 300, the sound may be output through thesecond pattern 420 in the forward direction of the display module 100,and the sound may be reflected by the side surface of the structure 900and may be output in the forward direction of the display module 100,thereby providing a display apparatus for enhancing a sound of thehigh-pitched sound band.

Although the structure 900 is not provided in FIGS. 13 and 14, a regionwhere the sound of the vibration generating module 400 is reflected maybe increased by a structure of the inclined rear cover 300 and/or thesecond hole or pattern 420 disposed in the rear cover 300, and the soundmay be output through or via the second hole or pattern 420 in theforward direction of the display module 100, thereby providing a displayapparatus for enhancing a sound of the high-pitched sound band. Forexample, the sound of the vibration generating module 400 may bereflected by the inclined rear cover 300 to increase a sound diffractedin the high-pitched sound band, and the sound may travel in the forwarddirection of the display module 100, thereby providing a displayapparatus for enhancing a sound of the high-pitched sound band.

FIG. 15 illustrates a display apparatus according to another embodimentof the present disclosure. FIG. 15 is an embodiment of the presentdisclosure implemented by modifying a structure of the rear coverillustrated in FIG. 9. Hereinafter, therefore, a rear cover will bedescribed in detail, the other elements are referred to by the samereference numerals as FIG. 9, and their repetitive descriptions areomitted or will be briefly given.

With reference to FIG. 15, a vibration generating module 400 may bedisposed to be inclined with respect to a rear surface of a rear cover300. For example, the vibration generating module 400 may be disposed tobe inclined by a second connection member 800 whose one side (orportion) is open. For example, the vibration generating module 400 maybe inclined by a height of the second connection member 800. Forexample, the second connection member 800 may have a height which isprogressively reduced from one side (or portion) thereof to the otherside (or portion) opposite to the one side (or portion). For example,the second connection member 800 may include a first side parallel tothe one side (or portion) thereof, a second side connected to one end(or portion) of the first side, and a third side connected to the otherend (or portion) of the first side in parallel with the second side, anda height of the second side and the third side may have a lower height(a thickness) as it nears the first side.

For example, a degree to which the vibration generating module 400 isinclined may vary from one side (or portion) of the rear cover 300 tothe other side (or portion) thereof so that a sound output at a sidesurface of the display module 100 is enhanced. For example, when a sideat which the second connection member 800 is disposed is the one side(or portion) of the rear cover 300, a degree to which the vibrationgenerating module 400 is inclined may increase from the one side (orportion) of the rear cover 300 to the other side (or portion) thereof.For example, a degree to which the vibration generating module 400 isinclined may increase from a center portion of the rear cover 300 to aside surface (or a sidewall) thereof. Therefore, the sound of thevibration generating module 400 may be efficiently output at the otherside (or portion) of the second connection member 800 whose the one side(or portion) is open.

The rear cover 300 according to another embodiment of the presentdisclosure may be disposed in a region except a magnetic field region Mcorresponding to a magnet member 403 of the vibration generating module400. For example, the rear cover 300 may be disposed in a region excepta magnetic field region M corresponding to a magnet member 403 of thefirst and second sound generating devices 410 and 430. For example, aportion except the magnetic field region M may be a second hole 420 ofthe rear cover 300. The rear cover 300 may include an elecytroplatedsteel sheet (for example, an electrolytically galvanized steel sheet(EGI) or an iron (Fe)-based material. For example, the elecytroplatedsteel sheet may be formed by electrically plating zinc (Zn). Therefore,the rear cover 300 may be disposed in a region except the magnetic fieldregion M of the vibration generating module 400, and thus, an influenceof a magnetic field caused by the rear cover 300 may be reduced on thevibration generating module 400, thereby enhancing a soundcharacteristic of the vibration generating module 400. For example, therear cover 300 may be disposed in a region except the magnetic fieldregion M of each of the first and second sound generating devices 410and 430, and thus, an influence of a magnetic field caused by the rearcover 300 may be reduced on the first and second sound generatingdevices 410 and 430, thereby enhancing a sound characteristic of thefirst and second sound generating devices 410 and 430.

For example, the rear cover 300 including at least one second hole 420and a connection member 800 whose one side (or portion) or one sidesurface is open may include a sound guide structure which guides a soundof the vibration generating module 400 so to be output in a forwarddirection or a lateral direction of the display module 100. For example,the rear cover 300 including the at least one second hole 420 mayinclude a sound guide structure which guides the sound of the vibrationgenerating module 400 so to be output in the forward direction or thelateral direction of the display module 100. For example, the rear cover300 including the at least one second hole 420 may include a sound guidestructure which guides sounds of the first and second sound generatingdevices 410 and 430 so to be output in the forward direction or thelateral direction of the display module 100. For example, the rear cover300 including the at least one second hole 420 and the connection member800, whose the one side (or portion) or the one side surface is open,and/or a structure 900 may include a sound guide structure which guidesthe sound of the vibration generating module 400 so to be output in theforward direction or the lateral direction of the display module 100.For example, the rear cover 300 including the at least one second hole420 and/or the structure 900 may include a sound guide structure whichguides the sound of the vibration generating module 400 so to be outputin the forward direction or the lateral direction of the display module100. For example, the rear cover 300 including the at least one secondhole 420 and/or the structure 900 may include a sound guide structurewhich guides the sounds of the first and second sound generating devices410 and 430 so to be output in the forward direction or the lateraldirection of the display module 100.

For example, the sound of the vibration generating module 400 may bereflected between the vibration generating module 400 and a rear surfaceof the rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be reflected between the firstand second sound generating devices 410 and 430 and the rear surface ofthe rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sound of the vibration generatingmodule 400 may be reflected between the vibration generating module 400and a rear surface of the rear cover 300 corresponding to the magneticfield region M and may be output in the forward direction of the displaymodule 100. For example, the sounds of the first and second soundgenerating devices 410 and 430 may be reflected between the vibrationgenerating module 400 and a rear surface of the rear cover 300corresponding to the magnetic field region M and may be output in theforward direction of the display module 100. For example, the sounds ofthe first and second sound generating devices 410 and 430 may bereflected by a side surface of the structure 900 and may be output inthe forward direction of the display module 100. For example, since theconnection member 800 whose one side (or portion) or one side surface isopen is provided, the sound of the vibration generating module 400 maybe output in the lateral direction, thereby enhancing a sound of thehigh-pitched sound band. For example, since the connection member 800whose one side (or portion) or one side surface is open is provided, thesound of the vibration generating module 400 may be output in thelateral direction, and a region where a sound between the rear cover 300and the vibration generating module 400 is reflected may be increased bythe inclined vibration generating module 400, thereby enhancing a soundof the high-pitched sound band. Therefore, a region where the sound ofthe vibration generating module 400 is reflected may increase due to asound reflected by the rear cover 300, the sound may be reflected by theside surface of the structure 900 and may be output in the forwarddirection of the display module 100, and the sound may be reflected fromthe magnetic field region M and may be output in the forward directionof the display module 100, thereby more enhancing a sound of thehigh-pitched sound band. For example, a region where the sounds of thefirst and second sound generating devices 410 and 430 are reflected mayincrease due to a sound reflected by the rear cover 300, the sounds maybe reflected by the side surface of the structure 900 and may be outputin the forward direction of the display module 100, and the sounds maybe reflected from the magnetic field region M and may be output in theforward direction of the display module 100, thereby more enhancing asound of the high-pitched sound band.

For example, a path of the sound generated by the vibration generatingmodule 400 may be a tenth sound path SP10. For example, a path of thesounds generated by the first sound generating device 410 and the secondsound generating device 430 may be the tenth sound path SP10. Forexample, the tenth sound path SP10 may be a forward direction (or athickness direction of the display module) and a lateral direction inwhich a sound is reflected by the rear surface of the display module100. For example, the tenth sound path SP10 may be a forward directionand a lateral direction in which a sound is reflected from the gap spaceGS (or the sound outputting space) between the vibration generatingmodule 400 and the rear cover 300, and may be a forward direction inwhich a sound is reflected by a side surface of the structure 900. Forexample, the tenth sound path SP10 may be a forward direction and alateral direction in which a sound is reflected from the gap space GS(or the sound outputting space) between the vibration generating module400 and the rear cover 300, and may be a forward direction and a lateraldirection in which a sound is output through or via the secondconnection member 800. For example, the tenth sound path SP10 may be alateral direction and a forward direction in which a sound is reflectedfrom the magnetic field region M and/or the second hole 420, and may bea forward direction in which a sound is reflected by the structure 900.

For example, the sound of the vibration generating module 400 may beoutput through or via the second hole 420 in the forward direction ofthe display module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be output through or via thesecond hole 420 in the forward direction of the display module 100. Forexample, a path of the sound generated by the vibration generatingmodule 400 through or via the second hole 420 may be an eleventh soundpath SP11. For example, a path of sounds generated by the first soundgenerating device 410 and the second sound generating device 430 throughthe second hole 420 may be the eleventh sound path SP11. For example,the eleventh sound path SP11 may be a forward direction (or a thicknessdirection of the display module) in which a sound is output by the rearsurface of the display module 100 through the second hole 420 and/or themagnetic field region M. For example, the eleventh sound path SP11 maybe a forward direction in which a sound is output in a gap space GS (ora sound outputting space) between the vibration generating module 400and the rear cover 300. Therefore, a sound by the vibration generatingmodule 400 may be output through or via the tenth sound path SP10 andthe eleventh sound path SP11, thereby providing a display apparatus formore enhancing a sound of the high-pitched sound band.

Although the structure 900 is not provided in FIG. 15, a region wherethe sound of the vibration generating module 400 is reflected may beincreased by a structure of the inclined vibration generating module 400and/or the second hole 420 disposed in the rear cover 300, and the soundmay be output through the second hole 420 in the forward direction ofthe display module 100, thereby providing a display apparatus forenhancing a sound of the high-pitched sound band. For example, the soundof the vibration generating module 400 may be reflected by the inclinedvibration generating module 400 to increase a sound diffracted in thehigh-pitched sound band, and the sound may travel in the forwarddirection of the display module 100, thereby providing a displayapparatus for enhancing a sound of the high-pitched sound band.

FIG. 16 illustrates a display apparatus according to another embodimentof the present disclosure. FIG. 16 illustrates an embodiment of thepresent disclosure implemented by modifying a structure of a rear coverin the display apparatus illustrated in FIGS. 9 and 15. Hereinafter,therefore, a rear cover will be described in detail, the other elementsare referred to by the same reference numerals as FIGS. 9 and 15, andtheir repetitive descriptions are omitted or will be briefly given.

With reference to FIG. 16, a vibration generating module 400 may bedisposed to be inclined with respect to a rear surface of a rear cover300. For example, the vibration generating module 400 may be disposed tobe inclined by a second connection member 800 whose one side (orportion) is open. For example, the vibration generating module 400 maybe inclined by a height of the second connection member 800. Forexample, the second connection member 800 may have a height which isprogressively reduced from one side (or portion) thereof to the otherside (or portion) opposite to the one side (or portion). For example,the second connection member 800 may include a first side parallel tothe one side (or portion) thereof, a second side connected to one end(or portion) of the first side, and a third side connected to the otherend (or portion) of the first side in parallel with the second side, anda height of each of the second side and the third side may have a lowerheight (a thickness) as it nears the first side.

For example, a degree to which the vibration generating module 400 isinclined may vary from one side (or portion) of the rear cover 300 tothe other side (or portion) thereof so that a sound output at a sidesurface of the display module 100 is enhanced. For example, when a sideat which the second connection member 800 is disposed is the one side(or portion) of the rear cover 300, a degree to which the vibrationgenerating module 400 is inclined may increase from the one side (orportion) of the rear cover 300 to the other side thereof. For example, adegree to which the vibration generating module 400 is inclined mayincrease from a center portion of the rear cover 300 to a side (orsidewall) thereof. Therefore, a sound of the vibration generating module400 may be efficiently output at the other side of the second connectionmember 800 whose the one side (or portion) is open.

A rear cover 300 according to another embodiment of the presentdisclosure may be disposed in a magnetic field region M corresponding toa magnet member 403 of a vibration generating module 400 and on a rearsurface of a display module 100. For example, the rear cover 300 may bedisposed in the magnetic field region M corresponding to a magnet member403 of each of first and second sound generating devices 410 and 430 andon the rear surface of the display module 100. For example, a secondhole 420 may be disposed between a portion except the magnetic fieldregion M and the rear cover 300. For example, the rear cover 300 mayinclude a material other than an iron (Fe)-based materials included inthe magnet member. For example, the rear cover 300 may include one ormore of an Al material, a Mg alloy material, a Mg—Li alloy material, andan Al alloy material. However, embodiments of the present disclosure arenot limited thereto, and the rear cover 300 may be formed of a materialthat does not the iron (Fe) material. Therefore, the rear cover 300 maybe disposed in the magnetic field region M, and the rear cover 300including the second hole 420 may be implemented. For example, aninfluence of a magnetic field caused by the rear cover 300 may bereduced on the first and second sound generating devices 410 and 430,and a sound characteristic of the first and second sound generatingdevices 410 and 430 may be enhanced.

For example, the rear cover 300 including the at least one second hole420 and a connection member 800 whose one side (or portion) or one sidesurface is open may include a sound guide structure which guides a soundof the vibration generating module 400 so to be output in a forwarddirection or a lateral direction of the display module 100. For example,the rear cover 300 including the at least one second hole 420 mayinclude a sound guide structure which guides the sound of the vibrationgenerating module 400 so to be output in the forward direction or thelateral direction of the display module 100. For example, the rear cover300 including the at least one second hole 420 may include a sound guidestructure which guides sounds of the first and second sound generatingdevices 410 and 430 so to be output in the forward direction or thelateral direction of the display module 100. For example, the rear cover300 including the at least one second hole 420 and the connection member800, whose the one side (or portion) or the one side surface is open,and/or the structure 900 may include a sound guide structure whichguides the sound of the vibration generating module 400 so to be outputin the forward direction or the lateral direction of the display module100. For example, the rear cover 300 including the at least one secondhole 420 and/or the structure 900 may include a sound guide structurewhich guides the sounds of the vibration generating module 400 so to beoutput in the forward direction or the lateral direction of the displaymodule 100. For example, the rear cover 300 including the at least onesecond hole 420 and/or the structure 900 may include a sound guidestructure which guides the sounds of the first and second soundgenerating devices 410 and 430 so to be output in the forward directionor the lateral direction of the display module 100.

For example, the sound of the vibration generating module 400 may bereflected between the vibration generating module 400 and a rear surfaceof the rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be reflected between the firstand second sound generating devices 410 and 430 and the rear surface ofthe rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sound of the vibration generatingmodule 400 may be reflected between the vibration generating module 400and a rear surface of the rear cover 300 corresponding to the magneticfield region M and may be output in the forward direction of the displaymodule 100. For example, the sounds of the first and second soundgenerating devices 410 and 430 may be reflected between the vibrationgenerating module 400 and a rear surface of the rear cover 300corresponding to the magnetic field region M and may be output in theforward direction of the display module 100. For example, the sounds ofthe vibration generating module 400 may be reflected by a side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be reflected by a side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100. For example, since the connection member 800 whoseone side (or portion) or one side surface is open is provided, the soundof the vibration generating module 400 may be output in the lateraldirection, thereby enhancing a sound of the high-pitched sound band. Forexample, since the connection member 800 whose one side (or portion) orone side surface is open is provided, the sound of the vibrationgenerating module 400 may be output in the lateral direction, and aregion where a sound between the rear cover 300 and the vibrationgenerating module 400 is reflected may be increased by the inclinedvibration generating module 400, thereby enhancing a sound of thehigh-pitched sound band. Therefore, a region where the sound of thevibration generating module 400 is reflected may increase due to a soundreflected by the rear cover 300, the sound may be reflected by the sidesurface of the structure 900 and may be output in the forward directionof the display module 100, and the sound may be reflected from themagnetic field region M and may be output in the forward direction ofthe display module 100, thereby more enhancing a sound of thehigh-pitched sound band. For example, a region where the sounds of thefirst and second sound generating devices 410 and 430 are reflected mayincrease due to a sound reflected by the rear cover 300, the sounds maybe reflected by the side surface of the structure 900 and may be outputin the forward direction of the display module 100, and the sounds maybe reflected from the magnetic field region M and may be output in theforward direction of the display module 100, thereby more enhancing asound of the high-pitched sound band.

For example, a path of the sound generated by the vibration generatingmodule 400 may be a twelfth sound path SP12. For example, a path of thesounds generated by the first sound generating device 410 and the secondsound generating device 430 may be the twelfth sound path SP12. Forexample, the twelfth sound path SP12 may be a forward direction (or athickness direction of the display module) and a lateral direction inwhich a sound is reflected by the rear surface of the display module100. For example, the twelfth sound path SP12 may be a forward directionand a lateral direction in which a sound is reflected from the gap spaceGS (or the sound outputting space) between the vibration generatingmodule 400 and the rear cover 300, and may be a forward direction inwhich a sound is reflected by a side surface of the structure 900. Forexample, the twelfth sound path SP12 may be a forward direction and alateral direction in which a sound is reflected from the gap space GS(or the sound outputting space) between the vibration generating module400 and the rear cover 300, and may be a forward direction and a lateraldirection in which a sound is output through or via the secondconnection member 800. For example, the twelfth sound path SP12 may be alateral direction and a forward direction in which a sound is reflectedfrom the magnetic field region M and/or the second hole 420, and may bea forward direction in which a sound is reflected by the structure 900.

The sound of the vibration generating module 400 may be output throughthe second hole 420 in the forward direction of the display module 100.For example, the sounds of the first and second sound generating devices410 and 430 may be output through the second hole 420 in the forwarddirection of the display module 100. For example, a path of the soundgenerated by the vibration generating module 400 through or via thesecond hole 420 may be a thirteenth sound path SP13. For example, a pathof each of sounds generated by the first sound generating device 410 andthe second sound generating device 430 through or via the second hole420 may be the thirteenth sound path SP13. For example, the thirteenthsound path SP13 may be a forward direction (or a thickness direction ofthe display module) in which a sound is output by the rear surface ofthe display module 100 through the second hole 420 and/or the magneticfield region M. For example, the thirteenth sound path SP13 may be aforward direction in which a sound is output in a gap space GS (or asound outputting space) between the vibration generating module 400 andthe rear cover 300. Therefore, a sound by the vibration generatingmodule 400 may be output through the twelfth sound path SP12 and thethirteenth sound path SP13, thereby providing a display apparatus formore enhancing a sound of the high-pitched sound band.

Although the structure 900 is not provided in FIG. 16, a region wherethe sound of the vibration generating module 400 is reflected may beincreased by a structure of the inclined vibration generating module 400and/or the second hole 420, or the rear cover 300 of the magnetic fieldregion M, and a sound reflected from the second hole or pattern 420, orthe magnetic field region M may be output to the forward direction ofthe display module 100, thereby providing a display apparatus forenhancing a sound of the high-pitched sound band. For example, the soundof the vibration generating module 400 may be reflected by the inclinedvibration generating module 400 to increase a sound diffracted in thehigh-pitched sound band, and the sound may travel in the forwarddirection of the display module 100, thereby providing a displayapparatus for enhancing a sound of the high-pitched sound band.

FIG. 17 illustrates a display apparatus according to another embodimentof the present disclosure. FIG. 18 illustrates a display apparatusaccording to another embodiment of the present disclosure. FIGS. 17 and18 illustrate an embodiment of the present disclosure implemented bymodifying a structure of a rear cover in the display apparatusillustrated in FIGS. 9 and 15. Hereinafter, therefore, a rear cover willbe described in detail, the other elements are referred to by the samereference numerals as FIGS. 9 and 15, and their repetitive descriptionsare omitted or will be briefly given.

With reference to FIGS. 17 and 18, a vibration generating module 400 maybe disposed to be inclined with respect to a rear surface of a rearcover 300. For example, the vibration generating module 400 may bedisposed to be inclined by a second connection member 800 whose one side(or portion) is open. For example, the vibration generating module 400may be inclined by a height of the second connection member 800. Forexample, the second connection member 800 may have a height which isprogressively reduced from one side (or portion) thereof to the otherside (or portion) opposite to the one side (or portion). For example,the second connection member 800 may include a first side parallel tothe one side (or portion) thereof, a second side connected to one end(or portion) of the first side, and a third side connected to the otherend (or portion) of the first side in parallel with the second side, anda height of each of the second side and the third side may have a lowerheight (a thickness) as it nears the first side.

For example, a degree to which the vibration generating module 400 isinclined may vary from one side (or portion) of the rear cover 300 tothe other side (or portion) thereof so that a sound output at a sidesurface of the display module 100 is enhanced. For example, when a sideat which the second connection member 800 is disposed is the one side(or portion) of the rear cover 300, a degree to which the vibrationgenerating module 400 is inclined may increase from the one side (orportion) of the rear cover 300 to the other side (or portion) thereof.For example, a degree to which the vibration generating module 400 isinclined may increase from a center portion of the rear cover 300 to aside (or sidewall) thereof. Therefore, a sound of the vibrationgenerating module 400 may be efficiently output at the other side (orportion) of the second connection member 800 whose the one side (orportion) is open.

A rear cover 300 according to another embodiment of the presentdisclosure may be disposed in a region except a magnetic field region Mcorresponding to a magnet member 403 of the vibration generating module400. For example, the rear cover 300 may be disposed in a region excepta magnetic field region M corresponding to a magnet member 403 of eachof first and second sound generating devices 410 and 430. For example, aportion except the magnetic field region M may be a second hole 420 ofthe rear cover 300. The rear cover 300 may include an elecytroplatedsteel sheet (for example, an electrolytically galvanized steel sheet(EGI) or an iron (Fe)-based material. For example, the elecytroplatedsteel sheet may be formed by electrically plating zinc (Zn). Therefore,the rear cover 300 may be disposed in a region except the magnetic fieldregion M of the vibration generating module 400, and thus, an influenceof a magnetic field caused by the rear cover 300 may be reduced on thevibration generating module 400, thereby enhancing a soundcharacteristic of the vibration generating module 400.

According to another embodiment of the present disclosure, a second rearcover 320 disposed on a rear surface of a rear cover 300 may be furtherprovided. For example, the second rear cover 320 may be disposed betweenthe rear cover 300 and the vibration generating module 400. For example,the second rear cover 320 may be disposed between the rear cover 300 andfirst and second sound generating devices 410 and 430. For example, thesecond rear cover 320 may overlap a portion of the rear cover 300. Forexample, the second rear cover 320 may be disposed in a magnetic fieldregion M corresponding to the magnet member 403 of the vibrationgenerating module 400. For example, the second rear cover 320 may bedisposed in a magnetic field region M corresponding to the magnet member403 of each of the first and second sound generating devices 410 and430.

For example, the second rear cover 320 may include nonferrous metal soas to decrease an influence of a magnetic field caused by the rear cover300 on the vibration generating module 400. For example, the second rearcover 320 may include nonferrous metal so as to decrease an influence ofa magnetic field caused by the rear cover 300 on the first and secondsound generating devices 410 and 430. For example, the second rear cover320 may include a material other than an iron (Fe)-based materialsincluded in the magnet member 403. For example, the second rear cover320 may include one of an Al material, a Mg alloy material, a Mg—Lialloy material, and an Al alloy material. However, embodiments of thepresent disclosure are not limited thereto, and the second rear cover320 may be made a material that does not the iron (Fe) material.Therefore, an influence of a magnetic field caused by the rear cover 300may be reduced on the vibration generating module 400, and thus, a soundloss of the vibration generating module 400 may be reduced, therebyenhancing a sound characteristic of the vibration generating module 400.For example, an influence of a magnetic field caused by the rear cover300 may be reduced on the first and second sound generating devices 410and 430, and a sound characteristic of each of the first and secondsound generating devices 410 and 430 may be enhanced.

For example, the rear cover 300 may include at least one second hole420. For example, the rear cover 300 may include at least one secondhole 420 overlapping the second rear cover 320. The at least one secondhole 420 may overlap the rear cover 300 and the second rear cover 320.

A third connection member 820 may be further provided between the rearcover 300 and the second rear cover 320. The third connection member 820may be an adhesive. For example, the adhesive may be a single-sidedadhesive, a single-sided foam adhesive, a single-sided tape, asingle-sided foam tape, a double-sided adhesive, a double-sided foamadhesive, a double-sided tape, a double-sided foam tape, or a pressuresensitive adhesive (PSA), but embodiments of the present disclosure arenot limited thereto.

With reference to FIG. 17, the second rear cover 320 and the rear cover300 may be disposed on the same plane. For example, a height and/or ashape of the second rear cover 320 disposed near the second hole 420 maybe adjusted for more enhancing a sound reflected by the vibrationgenerating module 400. For example, a height and/or a shape of thesecond rear cover 320 disposed near the second hole 420 may be adjustedfor more enhancing a sound reflected by each of the first and secondsound generating devices 410 and 430.

With reference to FIG. 18, the second rear cover 320 may be disposedbetween second holes 420 of the rear cover 300. For example, the secondrear cover 320 may be disposed between the rear cover 300 and thevibration generating module 400. For example, the second rear cover 320may be disposed between the rear cover 300 and the first and secondsound generating devices 410 and 430. For example, the second rear cover320 and/or the rear cover 300 may be implemented in a forming shape, andthus, a manufacturing process may be simplified. The second hole 420 maybe formed by forming a slit in the second rear cover 320. For example,since the second rear cover 320 and the rear cover 300 are formed in aforming shape, a region where a sound of the vibration generating module400 is reflected may more increase. For example, a height and/or a shapeof the second rear cover 320 disposed near the second hole 420 may beadjusted for more enhancing a sound reflected by the vibrationgenerating module 400.

For example, the connection member 800 whose one side (or portion) orone side surface is open, the rear cover 300 including at least onesecond hole 420, and/or the second rear cover 320 may include a soundguide structure which guides a sound of the first and second soundgenerating devices 410 and 430 so to be output in a forward direction ora lateral direction of the display module 100. For example, the rearcover 300 including the at least one second hole 420 and/or the secondrear cover 320 may include a sound guide structure which guides thesound of the first and second sound generating devices 410 and 430 so tobe output in the forward direction or the lateral direction of thedisplay module 100. For example, the rear cover 300 including the atleast one second hole 420 and/or the second rear cover 320, and thestructure 900 may include a sound guide structure which guides the soundof the first and second sound generating devices 410 and 430 so to beoutput in the forward direction or the lateral direction of the displaymodule 100. For example, the rear cover 300 including the at least onesecond hole 420, the second rear cover 320, and/or the structure 900 mayinclude a sound guide structure which guides the sound of the first andsecond sound generating devices 410 and 430 so to be output in theforward direction or the lateral direction of the display module 100.For example, the connection member 800 whose one side (or portion) orone side surface is open, the rear cover 300 including at least onesecond hole 420, the second rear cover 320, and/or the structure 900 mayinclude a sound guide structure which guides the sound of the first andsecond sound generating devices 410 and 430 so to be output in theforward direction or the lateral direction of the display module 100.

For example, the sound of the vibration generating module 400 may bereflected between the vibration generating module 400 and a rear surfaceof the rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be reflected between the firstand second sound generating devices 410 and 430 and the rear surface ofthe rear cover 300 and may be output in the forward direction of thedisplay module 100. For example, the sound of the vibration generatingmodule 400 may be reflected between the vibration generating module 400and a rear surface of the rear cover 300 corresponding to the magneticfield region M and may be output in the forward direction of the displaymodule 100. For example, the sounds of the first and second soundgenerating devices 410 and 430 may be reflected between the vibrationgenerating module 400 and a rear surface of the rear cover 300corresponding to the magnetic field region M and may be output in theforward direction of the display module 100. For example, the sounds ofthe vibration generating module 400 may be reflected by a side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100. For example, the sounds of the first and secondsound generating devices 410 and 430 may be reflected by a side surfaceof the structure 900 and may be output in the forward direction of thedisplay module 100. For example, since the connection member 800 whoseone side (or portion) or one side surface is open is provided, the soundof the vibration generating module 400 may be output in the lateraldirection, thereby enhancing a sound of the high-pitched sound band. Forexample, since the connection member 800 whose one side (or portion) orone side surface is open is provided, the sound of the vibrationgenerating module 400 may be output in the lateral direction, and aregion where a sound between the rear cover 300 and the vibrationgenerating module 400 is reflected may be increased by the inclinedvibration generating module 400, thereby enhancing a sound of thehigh-pitched sound band. Therefore, a region where the sound of thevibration generating module 400 is reflected may increase due to a soundreflected by the rear cover 300, the sound may be reflected by the sidesurface of the structure 900 and may be output in the forward directionof the display module 100, and the sound may be reflected from themagnetic field region M and may be output in the forward direction ofthe display module 100, thereby more enhancing a sound of thehigh-pitched sound band. For example, a region where the sounds of thefirst and second sound generating devices 410 and 430 are reflected mayincrease due to a sound reflected by the rear cover 300, the sounds maybe reflected by the side surface of the structure 900 and may be outputin the forward direction of the display module 100, and the sounds maybe reflected from the magnetic field region M and may be output in theforward direction of the display module 100, thereby more enhancing asound of the high-pitched sound band.

With reference to FIG. 17, a path of the sound generated by thevibration generating module 400 may be a fourteenth sound path SP14. Forexample, a path of the sounds generated by the first sound generatingdevice 410 and the second sound generating device 430 may be thefourteenth sound path SP14. For example, the fourteenth sound path SP14may be a forward direction (or a thickness direction of the displaymodule) and a lateral direction in which a sound is reflected by therear surface of the display module 100. For example, the fourteenthsound path SP14 may be a forward direction and a lateral direction inwhich a sound is reflected from the gap space GS (or the soundoutputting space) between the vibration generating module 400 and therear cover 300, and may be a forward direction in which a sound isreflected by a side surface of the structure 900. For example, thefourteenth sound path SP14 may be a forward direction and a lateraldirection in which a sound is reflected from the gap space GS (or thesound outputting space) between the vibration generating module 400 andthe rear cover 300, and may be a forward direction and a lateraldirection in which a sound is output through the second connectionmember 800. For example, the fourteenth sound path SP14 may be a lateraldirection and a forward direction in which a sound is reflected from themagnetic field region M and/or the second hole 420, and may be a forwarddirection in which a sound is reflected by the structure 900.

With reference to FIG. 17, the sound of the vibration generating module400 may be output through or via the second hole 420 in the forwarddirection of the display module 100. For example, the sounds of thefirst and second sound generating devices 410 and 430 may be outputthrough or via the second hole 420 in the forward direction of thedisplay module 100. For example, a path of the sound generated by thevibration generating module 400 through or via the second hole 420 maybe a fifteenth sound path SP15. For example, a path of each of soundsgenerated by the first sound generating device 410 and the second soundgenerating device 430 through or via the second hole 420 may be thefifteenth sound path SP15. For example, the fifteenth sound path SP15may be a forward direction (or a thickness direction of the displaymodule) in which a sound is output by the rear surface of the displaymodule 100 through or via the second hole 420 and/or the magnetic fieldregion M. For example, the fifteenth sound path SP15 may be a forwarddirection in which a sound is output in a gap space GS (or a soundoutputting space) between the vibration generating module 400 and therear cover 300. Therefore, a sound by the vibration generating module400 may be output through or via the fourteenth sound path SP14 and thefifteenth sound path SP15, thereby providing a display apparatus formore enhancing a sound of the high-pitched sound band.

With reference to FIG. 18, a path of the sound generated by thevibration generating module 400 may be a sixteenth sound path SP16. Forexample, a path of the sounds generated by the first sound generatingdevice 410 and the second sound generating device 430 may be thesixteenth sound path SP16. For example, the sixteenth sound path SP16may be a forward direction (or a thickness direction of the displaymodule) and a lateral direction in which a sound is reflected by therear surface of the display module 100. For example, the sixteenth soundpath SP16 may be a forward direction and a lateral direction in which asound is reflected from the gap space GS (or the sound outputting space)between the vibration generating module 400 and the rear cover 300, andmay be a forward direction in which a sound is reflected by a sidesurface of the structure 900. For example, the sixteenth sound path SP16may be a forward direction and a lateral direction in which a sound isreflected from the gap space GS (or the sound outputting space) betweenthe vibration generating module 400 and the rear cover 300, and may be aforward direction and a lateral direction in which a sound is outputthrough or via the second connection member 800. For example, thesixteenth sound path SP16 may be a lateral direction and a forwarddirection in which a sound is reflected from the magnetic field region Mand/or the second hole 420, and may be a forward direction in which asound is reflected by the structure 900.

With reference to FIG. 18, the sound of the vibration generating module400 may be output through or via the second hole 420 in the forwarddirection of the display module 100. For example, the sounds of thefirst and second sound generating devices 410 and 430 may be outputthrough or via the second hole 420 in the forward direction of thedisplay module 100. For example, a path of the sound generated by thevibration generating module 400 through or via the second hole 420 maybe a seventeenth sound path SP17. For example, a path of soundsgenerated by the first sound generating device 410 and the second soundgenerating device 430 through or via the second hole 420 may be theseventeenth sound path SP17. For example, the seventeenth sound pathSP17 may be a forward direction (or a thickness direction of the displaymodule) in which a sound is output by the rear surface of the displaymodule 100 through or via the second hole 420 and/or the magnetic fieldregion M. For example, the seventeenth sound path SP17 may be a forwarddirection in which a sound is output in a gap space GS (or a soundoutputting space) between the vibration generating module 400 and therear cover 300. Therefore, a sound by the vibration generating module400 may be output through or via the sixteenth sound path SP16 and theseventeenth sound path SP17, thereby providing a display apparatus formore enhancing a sound of the high-pitched sound band.

Although the structure 900 is not provided in FIGS. 17 and 18, a regionwhere the sound of the vibration generating module 400 is reflected maybe increased by a structure of the inclined vibration generating module400, and/or the rear cover 300, and/or the second rear cover 320 and asound reflected from the second hole or pattern 420, or the magneticfield region M may be output to the forward direction of the displaymodule 100, thereby providing a display apparatus for enhancing a soundof the high-pitched sound band. For example, the sound of the vibrationgenerating module 400 may be reflected by the inclined vibrationgenerating module 400 to increase a sound diffracted in the high-pitchedsound band, and the sound may travel in the forward direction of thedisplay module 100, thereby providing a display apparatus for enhancinga sound of the high-pitched sound band.

FIG. 19 illustrates a display apparatus according to another embodimentof the present disclosure. FIG. 20 is a cross-sectional view taken alongline II-IP illustrated in FIG. 19. FIGS. 19 and 20 illustrate anembodiment of the present disclosure implemented by modifying astructure of a rear cover and a backlight of the display apparatusillustrated in FIGS. 1 to 18. Hereinafter, therefore, a rear cover and abacklight will be described in detail, the other elements are referredto by the same reference numerals as FIGS. 1 to 18, and their repetitivedescriptions are omitted or will be briefly given.

With reference to FIGS. 19 and 20, in a display apparatus according toanother embodiment of the present disclosure, a rear cover 300 maysupport a backlight 130 of a display module 100 so that an inner air gap132 is provided in the backlight 130.

The rear cover 300 according to an embodiment of the present disclosuremay include a rear portion 310 which supports a rear surface of thedisplay module 100 and a side portion 330 which is connected to aperiphery of the rear portion 310 to support the supporting part 200.

The rear portion 310 may be disposed to cover the rear surface of thedisplay module 100 and may be configured to support the display module100. The rear portion 310 may support the backlight 130 of the displaymodule 100 and may be configured to support a vibration generatingmodule 400.

The rear portion 310 may include a cross-sectional structure having aconcavely curved shape so that the inner air gap 132 is provided in thebacklight 130. The inner air gap 132 of the backlight 130 may act as asound box for a sound which is generated based on a vibration of thefirst vibration generating module 400 and is propagated, therebyenhancing a sound characteristic of the low-pitched sound band. Exceptfor the cross-sectional structure having a concavely curved shape, therear portion 310 may be substantially the same as the above-describedrear part, and thus, a repetitive description of a structure other thanthe cross-sectional structure having a concavely curved shape isomitted.

The rear portion 310 according to an embodiment of the presentdisclosure may have a cup structure where a middle region MA of thedisplay module 100 protrudes to a rear surface of the display apparatus,with respect to a first direction X (or a widthwise direction) of thedisplay module 100. For example, a distance (or an interval) between anupper surface of the rear portion 310 and a rear surface of a displaypanel 110 may increase progressively from periphery regions EA1 and EA2to the middle region MA, with respect to the first direction X (or thewidthwise direction) of the display module 100.

In the rear portion 310 according to an embodiment of the presentdisclosure, a distance (or a depth) between a middle region MA of therear portion 310 and a virtual planar surface (or a horizontal line)connecting one end and the other end of the rear portion 310 may beabout 0.01% to 0.5% of a total length of the rear portion 310, withrespect to a first direction X (or a widthwise direction) of the displaymodule 100.

For example, when the depth of the middle region MA of the rear portion310 is about 0% of the total length of the rear portion 310, the rearportion 310 may substantially have a plane structure, and for example,the inner air gap 132 may not be provided in the backlight 130. Also,when the depth of the middle region MA of the rear portion 310 is morethan about 0.5% of the total length of the rear portion 310, a distance(or a size) of the inner air gap 132 in the backlight 130 may increase,and thus, the loss of a sound wave of the high-pitched sound bandproportional to the distance may increase, whereby a sound of themiddle-high-pitched sound band may not be realized or a sound wave ofthe middle-high-pitched sound band may be reduced, a sound of themiddle-high-pitched sound band generated by the first vibrationgenerating device 410 and a sound of a middle-low-pitched sound bandgenerated by the second vibration generating device 430 may be separatedfrom each other, and a thickness of the display apparatus may increase.Accordingly, the depth of the middle region MA of the rear portion 310may be set to about 0.01% to 0.5% of the total length of the rearportion 310 so that the inner air gap 132 of the backlight 130 acts as asound box for enhancing a sound characteristic of the low-pitched soundband. For example, a middle-pitched sound band may be 200 Hz to 3 kHz,but embodiments of the present disclosure are not limited thereto andmay be 3 kHz to 5 kHz. The high-pitched sound band may be 3 kHz or more,but embodiments of the present disclosure are not limited thereto andmay be 5 kHz or more.

A side portion 330 may be bent from a periphery of the rear portion 310and may be configured to support a supporting part 200. The side portion330 may provide a backlight accommodating space in the rear portion 310and may surround side surfaces of the backlight 130 accommodated into(or supported by) the backlight accommodating space.

The backlight 130 may include a reflective sheet 133, a light guide part131, a light source part, and an optical sheet part 135.

The reflective sheet 133 may be disposed on the rear portion 310 of therear cover 300. The reflective sheet 133 may be disposed on the rearportion 310 to have a concave shape along a concave shape of the rearportion 310. For example, the reflective sheet 133 may be bent in aconcave shape by a self-weight (or self-load) thereof, and thus, may bedisposed in the rear portion 310 to have a conformal shape which isbased on a shape of the rear portion 310. The reflective sheet 133 mayreflect light, which is incident from the light guide part 131, to thelight guide part 131 to minimize or reduce the loss of light.

The light guide part 131 may include a light incident surface which isdisposed on the reflective sheet 133 to overlap the display panel 110and is provided on at least one sidewall thereof. The light guide part131 may include a light-transmitting plastic or glass material. Thelight guide part 131 may allow light, which is incident through thelight incident surface from the light source part, to travel to thedisplay panel 110.

The light guide part 131 according to an embodiment of the presentdisclosure may be disposed on the reflective sheet 133 to have a concaveshape which is not based on a concave shape of the rear portion 310. Forexample, the light guide part 131 may be disposed on the reflectivesheet 133 to have a non-conformal shape which is not based on a shape ofthe reflective sheet 133 (or the rear portion 310). Therefore, thebacklight 130 may include an inner air gap 132 between the reflectivesheet 133 and the light guide part 131. The inner air gap 132 may beprovided between the light guide part 131 and the reflective sheet 133overlapping a middle region MA of the display module 100. The reflectivesheet 133 overlapping a periphery region EA of the display module 100may contact a periphery of the light guide part 131, and thus, the innerair gap 132 may not be provided between the reflective sheet 133 and theperiphery of the light guide part 131. The inner air gap 132 may beprovided between the light guide part 131 and the reflective sheet 133overlapping the middle region MA of the display module 100. Thus, theinner air gap 132 may act as a sound box for a sound which is generatedbased on a vibration of the vibration generating module 400 and ispropagated, thereby enhancing a sound characteristic of the low-pitchedsound band.

The light guide part 131 may be bent in a concave shape by a self-weight(or self-load) thereof and may be disposed on the reflective sheet 133.

For example, when a stiffness of the light guide part 131 is relativelylow, the light guide part 131 may be bent in a shape which is based on aconcave shape of the reflective sheet 133 (or the rear portion 310) andmay be disposed on the reflective sheet 133, and thus, the inner air gap132 may not be provided between the reflective sheet 133 and the lightguide part 131. On the other hand, when a stiffness of the light guidepart 131 is relatively high, the light guide part 131 may not be bent bythe self-weight (or self-load) thereof and may be mounted or disposed onthe reflective sheet 133 in a planar state, and thus, the inner air gap132 may be provided between portions other than both ends of thereflective sheet 133 and the light guide part 131. For example, adistance (or a size) of the inner air gap 132 may increase, and thus,the loss of a sound wave of the high-pitched sound band proportional tothe distance may increase, whereby a sound of the middle-high-pitchedsound band may not be realized or a sound wave of themiddle-high-pitched sound band may be reduced and a sound of themiddle-high-pitched sound band generated by the first vibrationgenerating device 410 and a sound of a middle-low-pitched sound bandgenerated by the second vibration generating device 430 may be separatedfrom each other. Accordingly, the light guide part 131 may be formed ofa stiff material which is bent in a non-conformal shape which is notbased on a concave shape of the reflective sheet 133 (or the rearportion 310) and is disposed on the reflective sheet 133, for providingthe inner air gap 132 between the light guide part 131 and thereflective sheet 133 overlapping the middle region MA of the displaymodule 100.

The light source part may irradiate light onto the light incidentsurface in the light guide part 131. The light source part may bedisposed in the rear cover 300 to overlap a periphery region EA of thedisplay panel 110. The light source part according to an embodiment ofthe present disclosure may include a plurality of light emitting diode(LED) devices which are mounted on a printed circuit board (PCB) forlight source and irradiate lights onto the light incident surface.

The optical sheet part 135 may be on a front surface of the light guidepart 131 and may enhance a luminance characteristic of light output fromthe light guide part 131. The optical sheet part 135 may be disposed onthe light guide part 131 to have a conformal shape which is based on aconcave shape of the light guide part 131.

Therefore, the display apparatus according to an embodiment of thepresent disclosure may have the same effect as that of the displayapparatus illustrated in FIGS. 1 to 18. Also, in the display apparatusaccording to the present embodiment, the inner air gap 132 providedbetween the reflective sheet 133 and the light guide part 131 of thebacklight 130 may act as a sound box by using the rear portion 310 ofthe rear cover 300 having a cross-sectional structure having a concavelycurved shape, thereby more enhancing a sound characteristic of thelow-pitched sound band.

FIG. 21 is a graph showing a sound output characteristic of a displayapparatus according to an embodiment of the present disclosure. In FIG.21, a thin solid line represents a frequency-sound pressure levelcharacteristic of a display apparatus (or a display apparatus of acomparative example) including a connection member where one side (orportion) thereof is not open in the display apparatus of FIG. 6. A thicksolid line represents a frequency-sound pressure level characteristic ofthe display apparatus of FIG. 8. A dotted line represents afrequency-sound pressure level characteristic of the display apparatusof FIG. 17. In FIG. 21, the abscissa axis represents a frequency (Hz),and the ordinate axis represents a sound pressure level (dB). A soundpressure level shown in FIG. 21 has been measured by using AudioPrecision company's APX525 audio analyzer (FFT analyzer), and moreover,has been measured under a condition where an applied voltage is 3 Vrms,a sine sweep is applied at 20 Hz to 20 kHz, and a distance between adisplay panel and a measurement position is 0.5 m. The sine sweep may bea method of performing sweep for a short time, but a method is notlimited thereto.

With reference to FIG. 21, comparing with the display apparatus of thecomparative example, it may be seen that, in the display apparatuses ofFIGS. 8 and 17, a sound pressure level is enhanced in a low-pitchedsound level of 200 Hz or less. For example, comparing with the displayapparatus of the comparative example, it may be seen that, in thedisplay apparatuses of FIGS. 8 and 17, a sound pressure level in 200 Hzor less is enhanced by about 10 dB or more. Accordingly, comparing withthe display apparatus of the comparative example, it may be seen that,in the display apparatuses of FIGS. 8 and 17, a sound pressure level ofthe low-pitched sound band is enhanced. For example, since a rear coverincludes nonferrous metal, it may be seen that a sound pressure level ofthe low-pitched sound band is enhanced.

Moreover, comparing with the display apparatus of the comparativeexample, it may be seen that, in the display apparatuses of FIGS. 8 and17, a sound pressure level in a middle-pitched sound band of 200 Hz to 3kHz is enhanced by about 5 dB to about 8 dB or more. Comparing with thedisplay apparatus of the comparative example, it may be seen that, inthe display apparatuses of FIGS. 8 and 17, a sound pressure level in ahigh-pitched sound band of 3 kHz or more is enhanced by about 5 dB toabout 7 dB or more. Therefore, in a display apparatus according to anembodiment of the present disclosure, it may be seen that a sound of thehigh-pitched sound band is enhanced. For example, although apiezoelectric vibration device where an output of the high-pitched soundband is strong is not provided, a display apparatus including avibration generating module for outputting a sound of the high-pitchedsound band may be provided. Accordingly, a display apparatus including avibration generating module for enhancing a sound of the low-pitchedsound band to the high-pitched sound band may be provided.

A display apparatus according to an embodiment of the present disclosuremay be applied to various applications which output sound on the basisof a vibration of a display module without a separate speaker. Thedisplay apparatus according to an embodiment of the present disclosuremay be applied to mobile apparatuses, video phones, smart watches, watchphones, wearable apparatuses, foldable apparatuses, rollableapparatuses, bendable apparatuses, flexible apparatuses, curvedapparatuses, portable multimedia players (PMPs), personal digitalassistants (PDAs), electronic organizers, desktop personal computers(PCs), laptop PCs, netbook computers, workstations, navigationapparatuses, automotive navigation apparatuses, automotive displayapparatuses, TVs, wallpaper display apparatuses, signage apparatuses,game machines, notebook computers, monitors, cameras, camcorders, homeappliances, etc. Also, the flexible vibration module according to anembodiment of the present disclosure may be applied to organic lightemitting lighting devices or inorganic light emitting lighting devices.Also, in a case where the flexible vibration module according to anembodiment of the present disclosure is applied to a mobile apparatus,the flexible vibration module may act as a speaker or a receiver.

A display apparatus according to an embodiment of the present disclosurewill be described below.

A display apparatus according to an embodiment of the present disclosureincludes a display module including a display panel and configured todisplay an image, a rear cover at a rear surface of the display module,and a vibration generating module at a rear region of the rear cover,wherein the vibration generating module is configured to output sound ina forward direction and a lateral direction of the display module.

According to some embodiments of the present disclosure, the vibrationgenerating module may be disposed at a rear periphery of the rear coverand may be spaced apart from a rear surface of the rear cover, and thesound output from the vibration generating module is output in theforward direction and the lateral direction of the display module.

According to some embodiments of the present disclosure, the displayapparatus may further include at least one hole communicating with aspace between the rear periphery of the rear cover and the vibrationgenerating module.

According to some embodiments of the present disclosure, the vibrationgenerating module may be disposed to be inclined with respect to a rearsurface of the rear cover.

According to some embodiments of the present disclosure, the rear covermay be disposed to be inclined with respect to the vibration generatingmodule.

A display apparatus according to an embodiment of the present disclosureincludes a display module including a display panel and configured todisplay an image, a rear cover at a rear surface of the display module,and a vibration generating module at a rear region of the rear cover andconfigured to output a sound to the display module, wherein the rearcover and the vibration generating module are disposed in non-parallel.

According to some embodiments of the present disclosure, the vibrationgenerating module may be disposed non-parallel with respect to a rearsurface of the rear cover, and/or the rear cover may be disposednon-parallel with respect to the vibration generating module.

According to some embodiments of the present disclosure, the displayapparatus may further include a connection member between the vibrationgenerating module and the rear cover, one portion of the connectionmember being open, wherein a sound of the vibration generating modulemay be output in a lateral direction of the display module through theone portion of the connection member.

According to some embodiments of the present disclosure, the rear covermay include one or more holes overlapping the vibration generatingmodule.

According to some embodiments of the present disclosure, the rear covermay include a plurality of holes overlapping the vibration generatingmodule, and the plurality of holes may vary toward a center portion ofthe rear cover.

According to some embodiments of the present disclosure, the rear covermay include a plurality of holes overlapping the vibration generatingmodule, and the plurality of holes may vary from one portion of the rearcover to the other portion thereof.

According to some embodiments of the present disclosure, the rear covermay include a plurality of patterns overlapping the vibration generatingmodule, and the plurality of patterns may vary toward a center portionof the rear cover.

According to some embodiments of the present disclosure, the rear covermay include a plurality of patterns, and the plurality of patterns mayvary from one portion of the rear cover to the other portion thereof.

According to some embodiments of the present disclosure, the displayapparatus may further include a second rear cover between the rear coverand the vibration generating module and a hole overlapping the rearcover and the second rear cover.

According to some embodiments of the present disclosure, the second rearcover may include at least one hole.

According to some embodiments of the present disclosure, the second rearcover may be disposed at a portion except a magnetic field region of thevibration generating module.

According to some embodiments of the present disclosure, the second rearcover may be disposed to overlap a portion of the rear cover and aportion except a magnetic field region of the vibration generatingmodule.

According to some embodiments of the present disclosure, the rear coverand the second rear cover may include different materials.

According to some embodiments of the present disclosure, the second rearcover may include nonferrous metal.

According to some embodiments of the present disclosure, the displayapparatus may further include a structure at one portion of the displaymodule, wherein a sound of the vibration generating module is reflectedby the structure and is output in a forward direction of the displaymodule.

According to some embodiments of the present disclosure, the structureincludes a bottom portion on a rear surface of the rear cover, a sideportion spaced apart from one portion of the display module andconnected to the bottom portion, and a sound guide portion between thebottom portion and the side portion.

According to some embodiments of the present disclosure, the rear covermay include a rear portion on the rear surface of the display module anda side portion configured to support the display module, and the rearportion may include a cross-sectional structure having a concavelycurved shape.

According to some embodiments of the present disclosure, the rear covermay include a first rear region and a second rear region, and thevibration generating module may include a first sound generating deviceat the first rear region and a second sound generating device at thesecond rear region.

According to some embodiments of the present disclosure, a distancebetween a middle region of the rear portion and a virtual planar surfaceconnecting one end and the other end of the rear portion may be 0.01% to0.5% of a total length of the rear portion.

According to some embodiments of the present disclosure, the displayapparatus may further include a reflective sheet on the rear portion tohave a concave shape along a concave shape of the rear portion.

According to some embodiments of the present disclosure, the displayapparatus may further include a light guide part on the reflective sheetwith an inner air gap between the reflective sheet and the light guidepart.

It will be apparent to those skilled in the art that variousmodifications and variations may be made in the display apparatus of thepresent disclosure without departing from the technical idea or scope ofthe disclosure. Thus, it may be intended that embodiments of the presentdisclosure cover the modifications and variations of the disclosureprovided they come within the scope of the appended claims and theirequivalents.

What is claimed is:
 1. A display apparatus, comprising: a display moduleincluding a display panel and configured to display an image; a rearcover at a rear surface of the display module; and a vibrationgenerating module at a rear region of the rear cover, wherein thevibration generating module is configured to output sound in a forwarddirection and a lateral direction of the display module.
 2. The displayapparatus of claim 1, wherein the vibration generating module isdisposed at a rear periphery of the rear cover and is spaced apart froma rear surface of the rear cover, and wherein the sound output from thevibration generating module is output in the forward direction and thelateral direction of the display module.
 3. The display apparatus ofclaim 2, further comprising at least one hole communicating with a spacebetween the rear periphery of the rear cover and the vibrationgenerating module.
 4. The display apparatus of claim 1, wherein thevibration generating module is disposed to be inclined with respect to arear surface of the rear cover.
 5. The display apparatus of claim 1,wherein the rear cover is disposed to be inclined with respect to thevibration generating module.
 6. A display apparatus, comprising: adisplay module including a display panel and configured to display animage; a rear cover at a rear surface of the display module; and avibration generating module at a rear region of the rear cover andconfigured to output sound to the display module, wherein the rear coverand the vibration generating module are disposed in non-parallel.
 7. Thedisplay apparatus of claim 6, wherein the vibration generating module isdisposed non-parallel with respect to a rear surface of the rear cover,and/or the rear cover is disposed non-parallel with respect to thevibration generating module.
 8. The display apparatus of claim 1,further comprising a connection member between the vibration generatingmodule and the rear cover, one portion of the connection member beingopen, wherein sound of the vibration generating module is output in alateral direction of the display module through the one portion of theconnection member.
 9. The display apparatus of claim 1, wherein the rearcover comprises one or more holes overlapping the vibration generatingmodule.
 10. The display apparatus of claim 1, wherein: the rear covercomprises a plurality of holes overlapping the vibration generatingmodule, and the plurality of holes vary toward a center portion of therear cover.
 11. The display apparatus of claim 1, wherein: the rearcover comprises a plurality of holes overlapping the vibrationgenerating module, and the plurality of holes vary from one portion ofthe rear cover to the other portion thereof.
 12. The display apparatusof claim 1, wherein: the rear cover comprises a plurality of patternsoverlapping the vibration generating module, and the plurality ofpatterns vary toward a center portion of the rear cover.
 13. The displayapparatus of claim 1, wherein: the rear cover comprises a plurality ofpatterns, and the plurality of patterns vary from one portion of therear cover to the other portion thereof.
 14. The display apparatus ofclaim 1, further comprising: a second rear cover between the rear coverand the vibration generating module; and a hole overlapping the rearcover and the second rear cover.
 15. The display apparatus of claim 14,wherein the second rear cover comprises at least one hole.
 16. Thedisplay apparatus of claim 14, wherein the second rear cover is disposedat a portion except a magnetic field region of the vibration generatingmodule.
 17. The display apparatus of claim 14, wherein the second rearcover is disposed to overlap a portion of the rear cover and a portionexcept a magnetic field region of the vibration generating module. 18.The display apparatus of claim 14, wherein the rear cover and the secondrear cover comprise different materials.
 19. The display apparatus ofclaim 14, wherein the second rear cover comprises nonferrous metal. 20.The display apparatus of claim 1, further comprising a structuredisposed at one portion of the display module, wherein a sound of thevibration generating module is reflected by the structure and is outputin a forward direction of the display module.
 21. The display apparatusof claim 20, wherein the structure comprises: a bottom portion at a rearsurface of the rear cover; a side portion being spaced apart from oneportion of the display module and connected to the bottom portion; and asound guide portion between the bottom portion and the side portion. 22.The display apparatus of claim 1, wherein the rear cover comprises: arear portion at the rear surface of the display module; and a sideportion configured to support the display module, and the rear portioncomprises a cross-sectional structure having a concavely curved shape.23. The display apparatus of claim 1, wherein: the rear cover comprisesa first rear region and a second rear region, and the vibrationgenerating module comprises a first sound generating device at the firstrear region and a second sound generating device at the second rearregion.
 24. The display apparatus of claim 22, wherein a distancebetween a middle region of the rear portion and a virtual planar surfaceconnecting one end and the other end of the rear portion is 0.01% to0.5% of a total length of the rear portion.
 25. The display apparatus ofclaim 22, further comprising: a reflective sheet on the rear portion tohave a concave shape along a concave shape of the rear portion.
 26. Thedisplay apparatus of claim 25, further comprising: a light guide part onthe reflective sheet with an inner air gap between the reflective sheetand the light guide part.